Tôi yêu C/C++

[C]--Hàm Xuất “printf()”

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Title: [C]--Hàm Xuất “printf()”
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3. Hàm Xuất “printf()” Đề bài: giới thiệu về hàm printf trong C Ý tưởng: Code: #include /* Hay so sanh tap tin .exe voi BT01_01 */ #i...

[C]--Hàm Xuất “printf()”

3. Hàm Xuất “printf()” Đề bài: giới thiệu về hàm printf trong C Ý tưởng: Code: #include /* Hay so sanh tap tin .exe voi BT01_01 */ #i...

[C]--Đếm số ký tự alpha của 1 xâu

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Title: [C]--Đếm số ký tự alpha của 1 xâu
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2. Đếm số ký tự alpha của 1 xâu Đề bài: Input: nhập vào 1 xâu bất kỳ Ouput: Xuất ra số ký tự alpha của xâu đó. Ý tưởng: Sử dụng hàm is...

<pre>2. Đếm số ký tự alpha của 1 xâu

Đề bài:

Input: nhập vào 1 xâu bất kỳ

Ouput: Xuất ra số ký tự alpha của xâu đó.

Ý tưởng:

Sử dụng hàm isalpha trong thư viện ctype.h để đếm số ký tự. Hàm isalpha trả về true nếu đó là ký tự

alpha, failse nếu không phải là ký tự alpha(vd: *^&(…).

Code:

/* Bai tap 9_1 - Dem so lan xuat hien cac ky tu trong chuoi */

#include <stdio .h="">

#include <ctype .h="">

int main()

char chuoi[80];

int i = 0, count = 0;

printf("\nNhap vao mot chuoi bat ky : ");

gets(chuoi);

while (chuoi[i] != 0)

{

if (isalpha(chuoi[i++]))

count++;

printf("So ky tu trong chuoi = %d", count);

return 0;

//  getch();

Kết quả:

Nhap vao mot chuoi bat ky : ab@1a

So ky tu trong chuoi = 3

--------------------------------

Process exited after 3.859 seconds with return value 0

Press any key to continue . . .
----------------------------
Chú ý: Trường hợp các bạn chạy code bị lỗi hãy report cho chúng tôi theo mail: cplushitech@gmail.com
Code trong các vị dụ sử dụng trình biên dịch Dev-C. Các trình biên dịch khác phải tùy biến thích hợp.
</ctype></stdio></pre>
<pre><stdio .h=""><ctype .h="">Các bạn xem tại đây:<a href="http://hocccoban.org/2015/04/04/dem-so-ky-tu-alpha-cua-1-xau-trong-c-2.html">http://hocccoban.org/2015/04/04/dem-so-ky-tu-alpha-cua-1-xau-trong-c-2.html</a></ctype></stdio></pre>

[C]--Đếm số ký tự alpha của 1 xâu

2. Đếm số ký tự alpha của 1 xâu Đề bài: Input: nhập vào 1 xâu bất kỳ Ouput: Xuất ra số ký tự alpha của xâu đó. Ý tưởng: Sử dụng hàm is...

[C]--Viết chương trình hiển thị ra màn hình dòng chữ Hello, World!

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Title: [C]--Viết chương trình hiển thị ra màn hình dòng chữ Hello, World!
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1. Helloworld Đề bài: Viết chương trình hiển thị ra màn hình dòng chữ Hello, World! Ý tưởng: Code: #include int main() /* my fi...

[C]--Viết chương trình hiển thị ra màn hình dòng chữ Hello, World!

1. Helloworld Đề bài: Viết chương trình hiển thị ra màn hình dòng chữ Hello, World! Ý tưởng: Code: #include int main() /* my fi...

code kiểm tra tam giác

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Title: code kiểm tra tam giác
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‪#‎include‬ <stdio.h> #include <onio.h> bool KiemTraTamGiac (int a, int b, int c) { if (a+b >c && b + c > a &a...

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<pre>‪#‎include‬ <stdio.h><stdio .h="">
#include <onio.h><conio .h="">
bool KiemTraTamGiac (int a, int b, int c)
{
if (a+b >c && b + c > a && a +c >b)
return true;
return false;
}
void LoaiTamGiac (int a, int b, int c)
{
if (a*a + b*b == c*c || a*a + c*c == b*b || c*c + b*b == a*a)
{
printf ("\nDay la tam giac vuong ");
}
else printf ("\nDay la tam giac thuong");
}
int main ()
{
int a,b,c;
printf ("\nNhap do dai 3 canh cua tam giac : \n");
scanf ("%d%d%d",&a,&b,&c);
KiemTraTamGiac (a,b,c);
if (KiemTraTamGiac (a,b,c)== true)
{
LoaiTamGiac (a,b,c);
}
else 
printf ("\nDo dai 3 canh vua nhap khong phai la 3 canh cua mot tam giac");
getch ();
return 0;
}</conio></stdio></pre>
<b>Các bạn xem thêm đây để hiểu nhé:<a href="http://hocccoban.org/2015/03/21/code-kiem-tra-tam-giac.html">http://hocccoban.org/2015/03/21/code-kiem-tra-tam-giac.html</a></b>

code kiểm tra tam giác

‪#‎include‬ <stdio.h> #include <onio.h> bool KiemTraTamGiac (int a, int b, int c) { if (a+b >c && b + c > a &a...

[C] - Kỹ thuật callback trong C

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Title: [C] - Kỹ thuật callback trong C
Author: quynhbkhn
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#include <stdio.h> #include <conio.h> #include <math.h> // Dinh nghia callback typedef int (* opstion) (int *, int); /...

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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6oOliKerQqZhCn5ciaJQUBrq1GErvrxxkzDx_Ogb28FxiieAtsKF0Be5JVE6SHOthTcuOZ_yvlHoxk3zxFlJyShxbqVN5ML2vooFIViIFJ2Qkxe2SiXed_PM6B8h4QNlVjxnaFsODTzM/s1600/images.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6oOliKerQqZhCn5ciaJQUBrq1GErvrxxkzDx_Ogb28FxiieAtsKF0Be5JVE6SHOthTcuOZ_yvlHoxk3zxFlJyShxbqVN5ML2vooFIViIFJ2Qkxe2SiXed_PM6B8h4QNlVjxnaFsODTzM/s1600/images.jpg" /></a></div>
<pre><stdio .h=""><stdlib .h=""><conio .h=""><lengtharray a="" array="" ax="" c="" cua="" d="" for="" gia="" ham="" hap="" hi="" i="" if="" in="" inmang="" int="" l="" lengtharray="" lon="" m="" mang="" max="" min="array" n="" ng="" nhat="" phan="" printf="" ra="" scanf="" se="" t="" timmax="" timmin="" tr="" tri="" trong="" tu="" tuong="" u="">#include <stdio.h>
#include <conio.h>
#include <math.h>

// Dinh nghia callback
typedef int (* opstion) (int *, int);

//ham nhap mang
void nhapMang (int * array, int lengthArray)
{
    int i;
    printf("Nhap mang %d phan tu:\n",lengthArray);
    for (i = 0; i<lengthArray; i++)
        {
            scanf("%d",(array + i));
        }
}

//Ham in mang

void inMang (int * array, int lengthArray)
{
    int i;
    printf("Mang da nhap\n");
    for (i = 0; i<lengthArray; i++)
        {
            printf("%2d",*(array + i));
        }
}

//ham tim min
int timMin(int *array, int lengthArray)
{
 int i;
 int Min = *array;
 for(i=1;i<lengthArray;i++)
 if(Min>*(array+i)) Min = *(array+i);
 return Min;
}

//Ham tim max
int timMax(int *array, int lengthArray)
{
 int i;
 int Max = *(array);
 for(i=1;i<lengthArray;i++)
 if(Max<*(array+i)) Max = *(array+i);
 return Max;
}

// Khai bao cho phep goi lai ham callback de xu ly mang 1 mang voi chieu dai la lengthArray, chuc nang trong opstion
int opstionArray (int * array, int lengthArray, opstion pOption)
{
    // Tr? xy ly cho mang
    return  pOption (array, lengthArray);
}

/// Main /////
int main ()
{
    int array [10];
    int choise;
    // Nhap mang
    nhapMang (array, 10);
    // In ra mang vua nhap mang
    inMang (array, 10);
    choise = 0;
    printf ("\nTim Min Max hoac cua mang da nhap \n");
    while (choise!= 3)
    {
        printf ("\nChon: \n1: Tim Min \n2: Tim Max \n3: Exit \n");
        scanf ("%d", &choise);
        // Chon lua opstion cho m?ng da nhap
        switch (choise)
        {
        case 1:
            printf ("Min =%d", opstionArray (array, 10, timMin));
            break;
        case 2:
            printf ("Max =%d", opstionArray (array, 10, timMax));
            break;
        case 3:
            break;
        }
    }
 
    getch ();
}
</lengtharray></conio></stdlib></stdio></pre>
<pre>ĐỂ HIỂU RÕ HƠN CÁC BẠN HÃY XEM TẠI ĐÂY:<a href="http://hocccoban.org/2015/03/21/c-ky-thuat-callback-trong-c.html">http://hocccoban.org/2015/03/21/c-ky-thuat-callback-trong-c.html</a></pre>

[C] - Kỹ thuật callback trong C

#include <stdio.h> #include <conio.h> #include <math.h> // Dinh nghia callback typedef int (* opstion) (int *, int); /...

[C&asm] - Cách chèn code asm trong C

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Title: [C&asm] - Cách chèn code asm trong C
Author: quynhbkhn
Rating 5 of 5 Des:

Bài này giới thiệu cách chạy 1 đoạn code asm trong visual C. asm là viết tắt của ngôn ngữ bậc thấp assembly, một ngôn ngữ mạnh mẽ nhất tron...

<span style="background-color: white; color: #222222; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;">Bài này giới thiệu cách chạy 1 đoạn code asm trong visual C.</span><br />
<span style="background-color: white; color: #222222; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;">asm là viết tắt của ngôn ngữ bậc thấp assembly, một ngôn ngữ mạnh mẽ nhất trong các ngôn ngữ lập trình, nó chỉ yếu hơn mã nhị phân 1 tẹo :))</span><br />
<span style="background-color: white; color: #222222; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;">Để hiểu thêm về ngôn ngữ này, các bạn vào </span><a href="http://hocccoban.org/2015/03/21/casm-cach-chen-code-asm-trong-c.html" style="background-color: white; color: #888888; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px; text-decoration: none;" target="_blank">đây</a><span style="background-color: white; color: #222222; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;"> hay vào</span><a href="http://hocccoban.org/2015/03/21/casm-cach-chen-code-asm-trong-c.html" style="background-color: white; color: #888888; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px; text-decoration: none;" target="_blank"> đây để học nhé</a><span style="background-color: white; color: #222222; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;"> :)</span><br />
<span style="background-color: white; color: #222222; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;">Bây giờ chúng ta cùng "nhúng" ngôn ngữ asm vào C, kiểu như nhúng thịt bò vào lẩu ấy, xem nó có ngon hơn không nhé.</span><br />
<span style="background-color: white; color: #222222; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;">Thôi không chém gió nữa, bắt đầu "nhúng thịt bò" nào :D</span><br />
<span style="background-color: white; color: blue; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;">Yêu cầu:</span><br />
<span style="background-color: white; color: #222222; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;">- Trình biên dịch: visual 2010</span><br />
<span style="background-color: white; color: blue; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;">Các bước thực hiện:</span><br />
<span style="background-color: white; color: #222222; font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 13px; line-height: 18.4799995422363px;">Bước 1: Mở visual 2010, tạo 1 project C++ mới, tích vào ô empty project. Cái này chắc mọi người biết :)</span><br />
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Bước 2:</div>
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Vào như hình vẽ, add 1 file C++ và đặt tên là main.cpp</div>
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Bước 3:</div>
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Bây giờ mình giới thiệu cú pháp "nhúng" mã asm trong C như sau:</div>
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<span style="color: blue;">__asm</span></div>
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{</div>
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     <i><span style="color: blue;"> </span><span style="color: magenta;">mã asm chèn ở đây</span></i></div>
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}</div>
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Xem<a href="http://msdn.microsoft.com/en-us/library/45yd4tzz(v=VS.80).aspx" style="color: #888888; text-decoration: none;" target="_blank"> đây đủ  asm keyword ở đây</a></div>
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Mã asm là gì? cái này các bạn phải đọc thêm nhiều bài viết về nó. Ở bài này mình giới thiệu 1 số mã cơ bản như sau:</div>
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mov adress1, adress2: Viết tắt tiếng Anh của nó là movie, nghĩa là di chuyển. Di chuyển địa chỉ ô nhớ máy tính từ địa chỉ 2 về địa chỉ 1. adress2 -> adress1. tùy trình biên dịch, dùng mov hoặc lea(tiếng Anh là leave)</div>
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push adress:  như nghĩa từ push luôn, đẩy địa chỉ adress vào ngăn xếp</div>
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pop adress: Đẩy các giá trị của địa chỉ ra từ ngăn xếp</div>
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call: gọi các hàm cần dùng, xem ở <a href="http://www.cs.princeton.edu/courses/archive/spr11/cos217/lectures/15AssemblyFunctions.pdf" style="color: #888888; text-decoration: none;" target="_blank">đây</a></div>
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OK, bây giờ các bạn vào file main.cpp vừa tạo chèn code này vào:</div>
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<span style="color: blue;">#include<stdio.h></span></div>
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<span style="color: blue;">#include<conio.h></span></div>
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<span style="color: blue;">int main()</span></div>
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<span style="color: blue;">{</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;"> </span>char hi[] = "Xin chao";</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;"> </span>char earth[] = "The gioi";</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;"> </span>char text[] = "%s %s";</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;"> </span>__asm</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;"> </span>{</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>lea eax,earth // eax = address of earth</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>push eax   // put eax at the top of the stack</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>lea eax,hi  // eax = address of hi</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>push eax</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>lea eax,text</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>push eax</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>call DWORD ptr printf</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>// or the indierct call</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>// mov eax, printf</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>// call eax</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>pop ebx // clean up the stack</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>pop ebx</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;">  </span>pop ebx</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;"> </span>}</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;"> </span>getch();</span></div>
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<span style="color: blue;"><span class="Apple-tab-span" style="white-space: pre;"> </span>return 0;</span></div>
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<span style="color: blue;">}</span></div>
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<br /></div>
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Bây giờ chúng ta F5 để chạy chương trình. Kết quả như sau:</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEis1qb2pIKMjwAUPj8a-A99lyy8EmQAhS43d7zqS15TkHWDxPjYfDWg4O8sQ4dUWgkyujkstUMCquZFo-5qChdICI2xrkQe7LTeYAdZEA9j17jpTL0FFlO1ocWKL10dxVjX91jtpbPL8D0/s1600/5.PNG" imageanchor="1" style="color: #888888; margin-left: 1em; margin-right: 1em; text-decoration: none;"><img border="0" height="292" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEis1qb2pIKMjwAUPj8a-A99lyy8EmQAhS43d7zqS15TkHWDxPjYfDWg4O8sQ4dUWgkyujkstUMCquZFo-5qChdICI2xrkQe7LTeYAdZEA9j17jpTL0FFlO1ocWKL10dxVjX91jtpbPL8D0/s1600/5.PNG" style="-webkit-box-shadow: rgba(0, 0, 0, 0.0980392) 1px 1px 5px; background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border: 1px solid rgb(238, 238, 238); box-shadow: rgba(0, 0, 0, 0.0980392) 1px 1px 5px; padding: 5px; position: relative;" width="640" /></a></div>
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<br /></div>
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<br /></div>
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Các tut sau mình sẽ giới thiệu cách code các bài đơn giản bằng asm :)</div>
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Hi vọng  mọi người quan tâm!</div>
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[C&asm] - Cách chèn code asm trong C

Bài này giới thiệu cách chạy 1 đoạn code asm trong visual C. asm là viết tắt của ngôn ngữ bậc thấp assembly, một ngôn ngữ mạnh mẽ nhất tron...

[C/C++] - Chữa đề thi giữa kỳ đại học điện lực câu 1

quynhbkhn

Link Author

Title: [C/C++] - Chữa đề thi giữa kỳ đại học điện lực câu 1
Author: quynhbkhn
Rating 5 of 5 Des:

Tính tổng B = 1 + 1/x^2 + 2/x^3 + ...+ n/x^(n+1) Xem cách làm tại video: YOUTUBE Tải mã nguồn: DOWNLOAD

Tính tổng B = 1 + 1/x^2 + 2/x^3 + ...+ n/x^(n+1)<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidf_I_hoQNlIloGvtfJOs64qEaiLkdO2Bl1CWYlSZJJaZTrjzZaYzeAvhqROMAVANEAaSamJyDnUhXdW7_j5qP3Cs9z3MCjHKY6_z1RJMabLBNA-9iGNmeiDSjambD22Clhol8ollKl5A/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="217" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidf_I_hoQNlIloGvtfJOs64qEaiLkdO2Bl1CWYlSZJJaZTrjzZaYzeAvhqROMAVANEAaSamJyDnUhXdW7_j5qP3Cs9z3MCjHKY6_z1RJMabLBNA-9iGNmeiDSjambD22Clhol8ollKl5A/s1600/Capture.PNG" width="400" /></a></div>
<div class="separator" style="clear: both; text-align: left;">
Xem cách làm tại video:</div>
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<a href="http://adf.ly/8996673/youtu.be/B3nmEYn2sK4" style="background: rgb(255, 255, 255); border: 0px; color: #167ac6; cursor: pointer; font-family: arial, sans-serif; font-size: 13px; line-height: 13px; margin: 0px; padding: 0px; text-decoration: none;" target="_blank">YOUTUBE</a></div>
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<br /></div>
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Tải mã nguồn:</div>
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<a href="http://adf.ly/8996673/www.dropbox.com/s/kfs2ymv4hszksmk/tinhtongs.rar?dl=0">DOWNLOAD </a></div>
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<br /></div>
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[C/C++] - Chữa đề thi giữa kỳ đại học điện lực câu 1

Tính tổng B = 1 + 1/x^2 + 2/x^3 + ...+ n/x^(n+1) Xem cách làm tại video: YOUTUBE Tải mã nguồn: DOWNLOAD

Chữa đề thi hết học phần NMTH ĐH Điện Lực 2014

admin

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Title: Chữa đề thi hết học phần NMTH ĐH Điện Lực 2014
Author: admin
Rating 5 of 5 Des:

đề thi hết học phần NTTH đại học điện lực -------------------------------------------------- -------------------------------------------...

<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXUWjPdU_j5bd9-Ij5hhElW2FU-9ZORC-KAgPXSEQ2llN9cE1tA9srTEjjgQqV9RrdwX7DMXtftslqJu3gUXJRoDm8DdlPnPLohyphenhyphenHpuscLMaBYRsbawaQVG5hot9FkORXU0nGWnrQaxw/s1600/1654378_820105854697136_4236128499522219361_n.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXUWjPdU_j5bd9-Ij5hhElW2FU-9ZORC-KAgPXSEQ2llN9cE1tA9srTEjjgQqV9RrdwX7DMXtftslqJu3gUXJRoDm8DdlPnPLohyphenhyphenHpuscLMaBYRsbawaQVG5hot9FkORXU0nGWnrQaxw/s1600/1654378_820105854697136_4236128499522219361_n.jpg" width="480" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">đề thi hết học phần NTTH đại học điện lực</td></tr>
</tbody></table>
-------------------------------------------------- ------------------------------------------------<br />
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<br /></div>
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<br /></div>
<div>
<b>Câu 1 : <i>Viết bằng ngôn ngữ C</i></b></div>
<div>
<pre>// S = 2 + NC2 + NA3

#include <stdio .h="">
#include <conio .h="">
#include <math .h="">

int GiaiThua (int a)
{
 if (a <2 data-blogger-thoát-1 = "" data-blogger-thoát-a = "" data-blogger-thoát-if = "" data-blogger-thoát-return = ""> 1)
 trả lại một * GiaiThua (a-1);
}

int Tĩnh (int n)
{
 int S = 0;
 S = 2 + GiaiThua (n) / (GiaiThua (2) * GiaiThua (n - 2));
 trở lại S;
}

main ()
{
 int n;
 do {
  printf ("\ nNhap n =");
  scanf ("% d", & n);
  if (n <3)
  printf ("\nGia tri n khong hop le. Xin kiem tra lai !");
 } Trong khi (n <3);
 printf ("\ Patong S =% d", Tịnh (n));
 getch ();
}
</math></conio></stdio>
</pre>
<b><i><br /></i></b></div>
<div>
<div>
<br /></div>
</div>
<div>
-------------------------------------------------- -</div>
<div>
<br /></div>
<div>
<b>Câu 1 : <i>Viết bằng ngôn ngữ C++</i></b></div>
<div>
<pre>// S = 2 + NC2 + NA3

#include <iostream>
using namespace std;
#include <math .h="">

int GiaiThua (int a)
{
 if (a <2 data-blogger-thoát-1 = "" data-blogger-thoát-a = "" data-blogger-thoát-if = "" data-blogger-thoát-return = ""> 1)
 trả lại một * GiaiThua (a-1);
}

int Tĩnh (int n)
{
 int S = 0;
 S = 2 + GiaiThua (n) / (GiaiThua (2) * GiaiThua (n - 2));
 trở lại S;
}

main ()
{
 int n;
 do {
  cout << "\ n = nNhap;
  cin >> n;
  if (n <3)
  cout<<"\nGia tri n khong hop le. Xin kiem tra lai !";
 } Trong khi (n <3);
 cout << "\ nTong S = <<tinh n="" pause="" pre="" system="">
</tinh></math>
</iostream></pre>
</div>
<div>
<div>
<br /></div>
</div>
<div>
-------------------------------------------------- -------------</div>
<div>
<br /></div>
<div>
<b>Câu 2 : <i>VIết bằng ngôn ngữ C</i></b></div>
<pre>#include <stdio .h="">
#include <conio .h="">
#include <stdlib .h="">
khoảng trống NhapMang (int * a, int n)
{
 for (int i = 0; i <n a="" d="" for="" i="" if="" int="" n="" nnhap="" printf="" scanf="" tinh="" tong="0;" void="" xuatmang=""> 0)
  Tong + = a [i];
 }
 trở Tong;
}

làm mất hiệu lực ThemPhanTu (int * a, int & n, int VTT, int PTT)
{
 realloc (a,(n+1)*sizeof (int));
 for (int i = n; i> VTT-1; i--)
 {
  a [i + 1] = a [i];
 }
 a [ATV] = PTT;
 n ++;
}

main ()
{
 int n;
 int * a = (int *) malloc (n * sizeof (int));
 do {
  printf ("\ nNhap nên phan luong tu n =");
  scanf ("% d", & n);
  if (n <0) 
  printf ("\nSo luong khong hop le. XIn kiem tra lai !");
 } Trong khi (n <0);
 // 1 //
 NhapMang (a, n);
 // 2 //
 printf ("\nTong cac phan tu khong am trong day so la %d",Tinh (a,n));
 // 3 //
 int đi xe đạp, PTT;
 printf ("\ nNhap phan tu muon họ:");
 scanf ("%d",&PTT);
 do {
  printf ("\ nNhap VTT =");
  scanf ("% d", & ATV);
  if (VTT <0 data-blogger-thoát-vtt = ""> n)
  printf ("\nVTT khong hop le . Xin kt lai !");
 } Trong khi (VTT <0 data-blogger-thoát-vtt = ""> n);
  ThemPhanTu (a, n, xe đạp leo núi, PTT);
  printf ("\nDay so sau khi them phan tu %d tai vi tri %d la : \n",PTT,VTT);
  XuatMang (a, n);
 
 miễn phí (a);
 getch ();
}
</n></stdlib></conio></stdio></pre>
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-------------------------------------------------- ----</div>
<div>
<br /></div>
<div>
<b>Câu 2 : <i>Viết bằng ngôn ngữ C++ </i></b><i> </i>(bài này ai đó làm cơ chế mảng động giúp mình đc ko ạ)</div>
<pre>#include <iostream>
using namespace std;

làm mất hiệu lực NhapMang (int a [], int n)
{
 for (int i = 0; i <n cin="" cout="" i="" m="" nnhap="" t="">> * (A + i);
 }
}
làm mất hiệu lực XuatMang (int a [], int n)
{
 for (int i = 0; i <n a="" cout="" for="" i="" if="" int="" n="" nh="" t="" tong="0;"> 0)
  Tong + = a [i];
 }
 trở Tong;
}

làm mất hiệu lực ThemPhanTu (int a [], int & n, int VTT, int PTT)
{
 //realloc (a,(n+1)*sizeof (int));
 for (int i = n; i> VTT-1; i--)
 {
  a [i + 1] = a [i];
 }
 a [ATV] = PTT;
 n ++;
}

main ()
{
 int n;
 int a [100];
 // Int * a = new int [];
 do {
  cout<<"\nNhap so luong phan tu n = ";
  cin >> n;
  if (n <0 data-blogger-thoát-n = ""> 100) 
  cout<<"\nSo luong khong hop le. XIn kiem tra lai !";
 } Trong khi (n <0 data-blogger-thoát-n = ""> 100);
 // 1 //
 NhapMang (a, n);
 // 2 //
 cout<<"\nTong cac phan tu khong am trong day so la "<<tinh 3="" :="" a="" cin="" cout="" i="" int="" muon="" n="" nnhap="" p="" phan="" ptt="" them="" tu="" xe="">> PTT;
 do {
  cout << "\ nNhap VTT =";
  cin >> ATV;
  if (ATV <0 data-blogger-thoát-mtb = ""> n)
  cout<<"\nVTT khong hop le . Xin kt lai !";
 } Trong khi (ATV <0 data-blogger-thoát-mtb = ""> n);
  ThemPhanTu (a, n, xe đạp leo núi, PTT);
  cout << "\ nday mình, do đó bạn Khỉ halloween phan" PTT << << "Đây là một tri vi" VTT << << "la: \ n";
  XuatMang (a, n);
 
 // Xóa một;
 hệ thống ("tạm dừng");
}
</tinh></n></n></iostream></pre>
<div>
<br /></div>
<div>
<br /></div>
<div>
-------------------------------------------------- ----</div>
<div>
<br /></div>
<div>
<br /></div>
<div>
<b>Câu 3 : <i>Viết bằng ngôn ngữ C</i></b></div>
<pre>#include <stdio .h="">
#include <conio .h="">
# define MAX 1000

typedef struct DSThuoc
{
 Nhưng char [20];
 char Ten [40];
 char Loai [50];
 int DonGia;
 int NamNhap;
 int SL;
}Thuoc;

void Nhap (Thuoc &a)
{
 printf ("\ nNhap ma thuoc:"); fflush (stdin); được (a.Ma);
 printf ("\ nNhap mười thuoc:"); fflush (stdin); được (a.Ten);
 printf("\nNhap loai thuoc : ");fflush (stdin);gets (a.Loai);
 printf ("\nNhap don gia thuoc : ");scanf("%d",&a.DonGia);
 printf ("\nNhap nam nhap thuoc : ");scanf ("%d",&a.NamNhap);
 printf("\nSo luong thuoc : ");scanf("%d",&a.SL);
 printf ("\ n ----------------");
}
void Xuat (Thuoc a)
{
 printf ("\ NMA thuoc:"); fflush (stdin); puts (a.Ma);
 printf ("\ nTen thuoc:"); fflush (stdin); puts (a.Ten);
 printf("\nLoai thuoc : ");fflush (stdin);puts (a.Loai);
 printf ("\ nDon gia thuoc:"); printf ("% d", a.DonGia);
 printf ("\ nNam nhap thuoc:"); printf ("% d", a.NamNhap);
 printf ("\ thuoc nso luong:"); printf ("% d", a.SL);
 printf ("\ n ----------------"); 
}
làm mất hiệu lực Nhap2 (Thước a [], int & n)
{
 for (int i = 0; i <n .namnhap="" .sl="=" 0="" 1="" 2012="" :="" a="" c="" d="" dem="" for="" h="" hi="" huoc="" i="" if="" int="" l="" luong="" m="" main="" n--="" n="" nhap="" nnhap="" nthong="" printf="" scanf="" so="" t="" thu="" thuoc="" tin="" tr="" u="" void="" vtx="" xoa="" xoapt="" xuat2="" xuat=""> MAX)
  printf ("\ tối xuất lai!");
 } Trong khi (n <0 data-blogger-thoat-n = ""> MAX);
 
 // 1.
 Nhap2 (a,n);
 
 // 2.
 printf ("\nSo thuoc co nam nhap la 2012 : %d",Dem (a,n));
 
 
 // 3 //
 printf("\nDanh sach thuoc sau khi xoa cac thuoc co so luong = 0 la:\n");
 Xoa (a,n);
 Xuat2 (a,n-1);
 getch ();
}
</n></conio></stdio></pre>
<div>
----------------------------------------------------------------------<br />
Câu 3: viết bằng C++</div>
<pre>
#include 
using namespace std;
#define MAX 1000

typedef struct DSThuoc
{
 Nhưng char [20];
 char Ten [40];
 char Loai [50];
 int DonGia;
 int NamNhap;
 int SL;
}Thuoc;

void Nhap (Thuoc &a)
{
 cout <<"\nNhap ma thuoc : ";fflush (stdin);gets(a.Ma);
 cout << "\ nNhap mười thuoc:"; fflush (stdin); được (a.Ten);
 cout <<"\nNhap loai thuoc : ";fflush (stdin);gets (a.Loai);
 cout <<"\nNhap don gia thuoc : ";cin>>a.DonGia;
 cout <<"\nNhap nam nhap thuoc : ";cin>>a.NamNhap;
 cout <<"\nSo luong thuoc : ";cin>>a.SL;
 cout << "\ n ----------------;
}
void Xuat (Thuoc a)
{
 cout <<"\nMa thuoc : ";fflush (stdin);puts(a.Ma);
 cout <<"\nTen thuoc : ";fflush (stdin);puts (a.Ten);
 cout <<"\nLoai thuoc : ";fflush (stdin);puts (a.Loai);
 cout << "\ nDon gia thuoc; cout << a.DonGia;
 cout <<"\nNam nhap thuoc : ";cout<> n;
  if (n <0 data-blogger-thoát-n = ""> MAX)
  cout << "\ tối xuất lai!";
 } While (n <0 data-blogger-thoát-n = ""> MAX);
 
 // 1.
 Nhap2 (a,n);
 
 // 2.
 cout<<"\nSo thuoc co nam nhap la 2012 : "<
</pre>

Chữa đề thi hết học phần NMTH ĐH Điện Lực 2014

đề thi hết học phần NTTH đại học điện lực -------------------------------------------------- -------------------------------------------...

[C]--chữa đề thi môn lập trình C ĐH điện lực

admin

Link Author

Title: [C]--chữa đề thi môn lập trình C ĐH điện lực
Author: admin
Rating 5 of 5 Des:

-------------------------------------------------------------------------------------------------------------------------- Câu 1: #incl...

<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmXZfEm158dQiVUVWSFf5H1iqZnDFgEEf7tbSx9n2B-34rFxvNWH9zU9ltAaoc8wpPW2_KhgOHzBqtOGd-Qv9lLt3eiYOh27FglGwFmKdyKGl_Lc5lsiNkkfZUhYD8N5shIhIGntioNA/s1600/10929130_396352083866436_6741473127374878524_n.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmXZfEm158dQiVUVWSFf5H1iqZnDFgEEf7tbSx9n2B-34rFxvNWH9zU9ltAaoc8wpPW2_KhgOHzBqtOGd-Qv9lLt3eiYOh27FglGwFmKdyKGl_Lc5lsiNkkfZUhYD8N5shIhIGntioNA/s1600/10929130_396352083866436_6741473127374878524_n.jpg" width="240" /></a></div>
--------------------------------------------------------------------------------------------------------------------------
 <b>Câu 1:</b>
<br />
#include <stdio.h><br />
#include <conio.h><br />
<br />
int Tĩnh (int n)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int Tong = 1;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 2; i <= n; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>Tong + = i * (i-1);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>trở Tong;<br />
}<br />
<br />
int main ()<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int n;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nNhap n ="); scanf ("% d", & n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nTong =% d", Tịnh (n));<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>getch ();<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>return 0;<br />
}<br />
----------------------------<br />
<b>Câu 2:</b>
<br />
#include <stdio.h><br />
#include <conio.h><br />
#define MAX 100<br />
làm mất hiệu lực NhapMang (int a [] [MAX], int dong, int cot)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <đồng; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>for (int j = 0; j <cot; j ++)<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>printf ("\ na [% d] [% d] =", i, j);<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>scanf ("% d", & a [i] [j]);<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
}<br />
làm mất hiệu lực XuatMang (int a [] [MAX], int dong, int cot)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <đồng; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>for (int j = 0; j <cot; j ++)<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>printf ("% 4d", a [i] [j]);<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span><br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>printf ("\ n");<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
}<br />
int DemPhanTuDuong (int a [] [MAX], int dong, int cot)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span> int Dem = 0;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <đồng; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>for (int j = 0; j <cot; j ++)<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>if (a [i] [j]> 0)<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>Dem ++;<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span><br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>trở Dem;<br />
}<br />
main ()<br />
{<br />
int a [MAX] [MAX];<br />
int dong, cot;<br />
printf ("\ nNhap nên dong, cot:");<br />
scanf ("% d% d", & dong, cot &);<br />
NhapMang (a, dong, cot);<br />
printf ("\ nso phan tu cua mang đường =% d", DemPhanTuDuong (a, dong, cot));<br />
printf ("\ nMang vua nhap la: \ n");<br />
XuatMang (a, dong, cot);<br />
getch ();<br />
return 0;<br />
}<br />
-----------------------------<br />
<b>Câu 3:</b> 
#include <stdio.h><br />
#include <conio.h><br />
#include <string.h><br />
#define MAX 100<br />
typedef struct SV<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>char SBD [15];<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>char HoTen [30];<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int NS;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>nổi dcs, DCN; // Khai bao bien co diem so / diem chuyen nganh<br />
} Sinhvien;<br />
<br />
// Nhap thong tin 1 thi sinh<br />
làm mất hiệu lực Nhap (sinhvien & a)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nNhap SBD:"); fflush (stdin); được (a.SBD);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nNhap Ho Ten:"); fflush (stdin); được (a.HoTen);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nNhap NS:"); scanf ("% d", & a.NS);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nNhap DCS:"); scanf ("% f", & a.dcs);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nNhap DCN:"); scanf ("% f", & a.dcn);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ n ------------------");<br />
}<br />
// Nhap thong tin cho mang n thi sinh<br />
<br />
làm mất hiệu lực Nhap2 (sinhvien a [], int & n)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <n; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>Nhap (a [i]);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
}<br />
// Xuat thong tin 1 thi sinh<br />
làm mất hiệu lực Xuat (sinhvien a)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ n SBD:"); fflush (stdin); puts (a.SBD);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ n Ho Ten:"); fflush (stdin); puts (a.HoTen);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ n NS:"); printf ("% d", a.NS);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ n DCS:"); printf ("% f", a.dcs);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ n DCN:"); printf ("% f", a.dcn);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ n ------------------");<br />
}<br />
<br />
// Xuat mang thi sinh<br />
làm mất hiệu lực Xuat2 (sinhvien a [], int n)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <n; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>Xuat (a [i]);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
}<br />
// Hàm xuất ra sv co tong diem lon thu k;<br />
TÌM trống (sinhvien a [], int n)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int k;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>do {<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nNhap k =");<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>scanf ("% d", & k);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>if (k <0 || k> n-1)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nXin kiem tra lai!");<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>} While (k <0 || k> n-1);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <n-1; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>for (int j = i + 1; j <n; j ++)<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>if ((a [i] .dcs + a [i] .dcn)> (a [j] .dcs) + a [j] .dcn)<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">    </span>Sinhvien tg = a [i];<br />
<span class="Apple-tab-span" style="white-space: pre;">    </span>a [i] = a [j];<br />
<span class="Apple-tab-span" style="white-space: pre;">    </span>a [j] = tg;<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <n; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>if (i == k)<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>Xuat (a [i]);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
}<br />
main ()<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>Sinhvien a [MAX];<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int n;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>do {<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>printf ("\ nNhap để luong sinh vien:"); scanf ("% d", & n);<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>if (n <0 || n> MAX)<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>printf ("\ nNhap lai!");<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>} While (n <0 || n> MAX);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>// A //<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>Nhap2 (a, n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>// B //<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>Xuat2 (a, n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>// C //<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>Timkiem (a, n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>getch ();<br />
}<br />
<div>
<br /></div>

[C]--chữa đề thi môn lập trình C ĐH điện lực

-------------------------------------------------------------------------------------------------------------------------- Câu 1: #incl...

[C]-Nhập- xuất-Tìm Min - Max - Sắp xếp Tăng-Giảm mảng 1 chiều

admin

Link Author

Title: [C]-Nhập- xuất-Tìm Min - Max - Sắp xếp Tăng-Giảm mảng 1 chiều
Author: admin
Rating 5 of 5 Des:

C: #include <stdio.h> #include <conio.h> #include <stdlib.h> do not gian NhapMang (int * a, int n) { for (int i...

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<br />
C:<br />
<br />
#include <stdio.h><br />
#include <conio.h><br />
#include <stdlib.h><br />
do not gian NhapMang (int * a, int n)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <n; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>printf ("\ nNhap a [% d] =", i);<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>scanf ("% d", (a + i));<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
}<br />
do not gian XuatMang (int * a, int n)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <n; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>printf ("% 4d", * (a + i));<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
}<br />
<br />
bool LonHon (int a, int b)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>trả về a> b;<br />
}<br />
bool NhoHon (int a, int b)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>returns an <b;<br />
}<br />
int TimGiaTriThoaYC (int * a, int n, bool (* SoSanh) (int, int))<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int x = a [0];<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 1; i <n; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>if (SoSanh (a [i], x) == true)<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>x = a [i];<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>return x;<br />
}<br />
làm HoanVi does not gian (int & a, int & b)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>aa = + b;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>b = a - b;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>one = ab;<br />
}<br />
làm mất hiệu lực SapXepMang (int * a, int n, bool (* SoSanh) (int, int))<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for (int i = 0; i <n-1; i ++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>for (int j = i + 1; j <n; j ++)<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>if (SoSanh (a [i], a [j]) == true)<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>HoanVi (a [i], a [j]);<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
}<br />
<br />
int main ()<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int n;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>do {<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>printf ("\ nNhap n =");<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>scanf ("% d", & n);<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>if (n <0)<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">   </span>printf ("\ nso luong phan tu khong hop le Xin kiem tra lai.!");<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>} Trong khi (n <0);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int * a = (int *) malloc (n * sizeof (int));<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>NhapMang (a, n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>XuatMang (a, n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nMang sap xep tang la: \ n");<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>SapXepMang (a, n, LonHon);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>XuatMang (a, n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nMang sap xep giam la: \ n");<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>SapXepMang (a, n, NhoHon);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>XuatMang (a, n);<br />
<div style="text-align: left;">
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf ("\ nMin =% d \ nMax =% d", TimGiaTriThoaYC (a, n, NhoHon), TimGiaTriThoaYC (a, n, LonHon));</div>
<span class="Apple-tab-span" style="white-space: pre;"> </span>phí miễn (a);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>getch ();<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>return 0;<br />
}<br />
<br />
-----------------------------------------------<br />
C ++<br />
<br />
#include <iostream><br />
using namespace std;<br />
<br />
do not gian NhapMang (int * a, int n)<br />
{<br />
 for (int i = 0; i <n; i ++)<br />
 {<br />
  cout << "\ nNhap a [" << i << "] =";<br />
  cin >> * (a + i);<br />
 }<br />
}<br />
do not gian XuatMang (int * a, int n)<br />
{<br />
 for (int i = 0; i <n; i ++)<br />
 {<br />
  cout << * (a + i) << "";<br />
 }<br />
}<br />
<br />
bool LonHon (int a, int b)<br />
{<br />
 trả về a> b;<br />
}<br />
bool NhoHon (int a, int b)<br />
{<br />
 returns an <b;<br />
}<br />
int TimGiaTriThoaYC (int * a, int n, bool (* SoSanh) (int, int))<br />
{<br />
 int x = a [0];<br />
 for (int i = 1; i <n; i ++)<br />
 {<br />
  if (SoSanh (a [i], x) == true)<br />
  x = a [i];<br />
 }<br />
 return x;<br />
}<br />
làm HoanVi does not gian (int & a, int & b)<br />
{<br />
 aa = + b;<br />
 b = a - b;<br />
 one = ab;<br />
}<br />
làm mất hiệu lực SapXepMang (int * a, int n, bool (* SoSanh) (int, int))<br />
{<br />
 for (int i = 0; i <n-1; i ++)<br />
 {<br />
  for (int j = i + 1; j <n; j ++)<br />
  {<br />
   if (SoSanh (a [i], a [j]) == true)<br />
   HoanVi (a [i], a [j]);<br />
  }<br />
 }<br />
}<br />
<br />
int main ()<br />
{<br />
 int n;<br />
 do {<br />
  printf ("\ nNhap n =");<br />
  scanf ("% d", & n);<br />
  if (n <0)<br />
  {<br />
   printf ("\ nso luong phan tu khong hop le Xin kiem tra lai.!");<br />
  }<br />
 } Trong khi (n <0);<br />
 int * a = new int [n];<br />
 NhapMang (a, n);<br />
 XuatMang (a, n);<br />
 cout << "\ nMang sap xep tang la: \ n";<br />
 SapXepMang (a, n, LonHon);<br />
 XuatMang (a, n);<br />
 cout << "\ nMang sap xep giam la: \ n";<br />
 SapXepMang (a, n, NhoHon);<br />
 XuatMang (a, n);<br />
 cout << "\ nMin =" << TimGiaTriThoaYC (a, n, NhoHon) << "\ nMax =" << TimGiaTriThoaYC (a, n, LonHon);<br />
 xóa (a);<br />
 thống hệ ("tạm kết thúc");<br />
 return 0;<br />
}<br />
<br />
<br />

[C]-Nhập- xuất-Tìm Min - Max - Sắp xếp Tăng-Giảm mảng 1 chiều

C: #include <stdio.h> #include <conio.h> #include <stdlib.h> do not gian NhapMang (int * a, int n) { for (int i...

[C]-- Chữa đề thi kết thúc học phần Nhập Môn Tin Học ĐH Điện Lực

admin

Link Author

Title: [C]-- Chữa đề thi kết thúc học phần Nhập Môn Tin Học ĐH Điện Lực
Author: admin
Rating 5 of 5 Des:

Câu 1 : Viết bằng ngôn nghữ C #include <stdio.h> #include <coio.h> #include math.h> int GiaiThua (int a) { if (a ...

<div class="separator" style="clear: both; text-align: center;">
</div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<div style="margin-bottom: .0001pt; margin: 0in;">
<b><span style="font-size: 13.5pt;">Câu 1 :<span class="apple-converted-space"> </span><i>Viết bằng
ngôn nghữ C</i></span></b><span style="font-size: 13.5pt;"><o:p></o:p>
</span><br />
<pre><span style="font-size: 13.5pt;">#include <stdio.h><stdio .h="">
#include <coio.h><conio .h="">
#include math.h><math .h="">
int GiaiThua (int a)
{
 if (a < 2)
  return 1;
 if (a > 1)
 return a * GiaiThua (a-1);
}
 int Tinh (int &n)
{
 int Tong = 0;
 for (int i = 1;i <=n;i++)
 {
  Tong+= pow (-1,i-1)*GiaiThua (i);
 }
 return Tong;
}
main ()
{
 int n;
 printf ("\nNhap n = ");
 scanf ("%d",&n);
 printf ("\nTong  =  %d",Tinh (n));
 getch ();
 
}
 </math></conio></stdio></span></pre>
<span style="font-size: 13.5pt;">
</span></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<span style="font-size: 13.5pt;">------------------------------------------------------------------<o:p></o:p></span></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<b><span style="font-size: 13.5pt;">Câu 1 :<span class="apple-converted-space"> </span><i>Viết
bằng ngôn nghữ C++</i></span></b><span style="font-size: 13.5pt;"><o:p></o:p>
</span><br />
<pre><span style="font-size: 13.5pt;">#include <iostream>
using namespace std;
#include <math .h="">

//Ham tinh giai thua
int GiaiThua (int a)
{
 if (a < 2)
  return 1;
 if (a > 1)
 return a * GiaiThua (a-1);
}

int Tinh (int &n)
{
 int Tong = 0;
 for (int i = 1;i <=n;i++)
 {
  Tong+= pow (-1,i-1)*GiaiThua (i);
 }
 return Tong;
}
main ()
{
 int n;
 cout<<"\nNhap n = ";
 cin>>n;
 cout<<"\nTong  =  "<<tinh n="" pause="" pre="" system="">
</tinh></math></iostream></span></pre>
</div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<span style="font-size: 13.5pt;">---------------------------------------------------------<o:p></o:p></span></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<b><span style="font-size: 13.5pt;">Câu 2 :<span class="apple-converted-space"> </span><i>Viết
bằng ngôn nghữ C</i></span></b><span style="font-size: 13.5pt;"><o:p></o:p>
</span><br />
<pre><span style="font-size: 13.5pt;">#include <stdio.h><stdio .h="">
#include <conio.h><conio .h="">
#include <math.h><string .h="">
#define MAX 100
void Nhap (char S[])
{
 printf ("\nXau can nhap la : ");
 fflush (stdin);
 gets (S);
}
void Xuat (char S[])
{

fflush (stdin);
 puts (S);
}

void Them (char S[])
{
 strcat (S,"abc");
 printf ("\nChuoi sau khi noi them \"abc\" co dang : ");
 Xuat (S);
}
int Dem (char S[])
{
 int l = strlen (S);
 return l;
}

main ()
{
 char S[MAX];

//1//
 Nhap (S);

//2//
 printf ("\nChuoi vua nhap la : ");
 Xuat (S);

//3//
 printf ("\nChieu dai cua chuoi vua nhap la : %d",Dem (S));

//4//
 Them (S);

getch ();

}
</string></conio></stdio></span></pre>
</div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<span style="font-size: 13.5pt;">---------------------------------------------------<o:p></o:p></span></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<b><span style="font-size: 13.5pt;">Câu 2 :<span class="apple-converted-space"> </span><i>Viết
bằng ngôn nghữ C++</i></span></b><span style="font-size: 13.5pt;"><o:p></o:p>
</span><br />
<pre><span style="font-size: 13.5pt;">#include <iostream>
using namespace std;
#include <string .h="">
#define MAX 100
void Nhap (char S[])
{
 cout<<"\nXau can nhap la : ";
 fflush (stdin);
 gets (S);
}
void Xuat (char S[])
{

fflush (stdin);
 puts (S);
}

void Them (char S[])
{
 strcat (S,"abc");
 cout<<"\nChuoi sau khi noi them \"abc\" co dang : ";
 Xuat (S);
}
int Dem (char S[])
{
 int l = strlen (S);
 return l;
}

main ()
{
 char S[MAX];

//1//
 Nhap (S);

//2//
 cout<<"\nChuoi vua nhap la : ";
 Xuat (S);

//3//
 cout<<"\nChieu dai cua chuoi vua nhap la : "<<dem pause="" pre="" system="" them="">
</dem></string></iostream></span></pre>
</div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin: 0in 0in 0.0001pt;">
<br /></div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<span style="font-size: 13.5pt;">----------------------------------------------<o:p></o:p></span></div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<br /></div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<b><span style="font-size: 13.5pt;">Câu 3 :<span class="apple-converted-space"> </span><i>Viết bằng
ngôn nghữ C</i></span></b><span style="font-size: 13.5pt;"><o:p></o:p>
</span><br />
<pre><span style="font-size: 13.5pt;">#include <stdio.h><stdio .h="">
#include <conio.h></stdio></span></pre>
<pre><span style="font-size: 13.5pt;"><stdio .h=""><conio .h="">#define MAX 1000
#include <string .h="">
typedef struct ThuVien
{
 char MaS [20];
 char TenS[40];
 char MaNXB[20];
 int Sl;
}TV;

void Nhap (TV &a)
{
 printf ("\nNhap ma sach : ");fflush (stdin);gets(a.MaS);
 printf ("\nNhap ten sach : ");fflush (stdin);gets (a.TenS);
 printf ("\nNhap ma nxb : ");fflush (stdin);gets (a.MaNXB);
 printf ("\nSo luong sach : ");scanf ("%d",&a.Sl);
 printf ("\n----------------");
}
void Xuat (TV a)
{
 printf ("\n ma sach : ");fflush (stdin);puts(a.MaS);
 printf ("\n ten sach : ");fflush (stdin);puts (a.TenS);
 printf ("\n ma nxb : ");fflush (stdin);puts (a.MaNXB);
 printf ("\nSo luong sach : ");printf ("%d",a.Sl);
 printf ("\n----------------");
}
void Nhap2 (TV a[], int &n)
{
 for (int i = 0; i <n 0="" :="" a="" anxb="" d="" dem="" for="" i="" if="" int="" l="" n="" nhap="" nthong="" printf="" return="" sach="" strcmp="" thu="" timkiem="" tin="" void="" xuat2="" xuat=""> 500)
  Xuat(a[i]);
 }
}

main ()
{
 TV a[MAX];
 int n;
 do
 {
  printf ("\nNhap so luong sach cua thu vien co : ");
  scanf ("%d",&n);
  if (n < 0 || n > MAX)
  printf ("\nXin nhap lai !");
 }while (n < 0 || n > MAX);

//1.
 Nhap2 (a,n);

//2.
 printf ("\nSo Sach cua NXB \"MNXB084\" la : %d",Dem (a,n));

//3.
 printf ("\nCac loai sach co sl > 500 la :\n");
 TimKiem (a,n);
 getch ();

}
</n></string></conio></stdio></span></pre>
</div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<br /></div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<br /></div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<span style="font-size: 13.5pt;">----------------------------------------------------<o:p></o:p></span></div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<br /></div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<b><span style="font-size: 13.5pt;">Câu 3 :<span class="apple-converted-space"> </span><i>Viết bằng
ngôn nghữ C++</i></span></b><span style="font-size: 13.5pt;"><o:p></o:p>
</span><br />
<pre><span style="font-size: 13.5pt;">#include <iostream>
using namespace std;
#define MAX 1000
#include <string .h="">
typedef struct ThuVien
{
 char MaS [20];
 char TenS[40];
 char MaNXB[20];
 int Sl;
}TV;

void Nhap (TV &a)
{
 cout <<"\nNhap ma sach : ";fflush (stdin);gets(a.MaS);
 cout <<"\nNhap ten sach : ";fflush (stdin);gets (a.TenS);
 cout <<"\nNhap ma nxb : ";fflush (stdin);gets (a.MaNXB);
 cout <<"\nSo luong sach : ";cin>>a.Sl;
 cout <<"\n----------------";
}
void Xuat (TV a)
{
 cout <<"\n ma sach : ";fflush (stdin);puts(a.MaS);
 cout <<"\n ten sach : ";fflush (stdin);puts (a.TenS);
 cout <<"\n ma nxb : ";fflush (stdin);puts (a.MaNXB);
 cout <<"\nSo luong sach : ";cout <<a .sl="" 0="" a="" anxb="" cout="" dem="" for="" href="https://www.blogger.com/null" i="" if="" int="" l="" n----------------="" n="" nhap2="" nhap="" nthong="" return="" sach="" strcmp="" thu="" timkiem="" tin="" void="" xuat2="" xuat=""> 500)
  Xuat(a[i]);
 }
}

main ()
{
 TV a[MAX];
 int n;
 do
 {
  cout<<"\nNhap so luong sach cua thu vien co : ";
  cin>>n;
  if (n < 0 || n > MAX)
  cout<<"\nXin nhap lai !";
 }while (n < 0 || n > MAX);

//1.
 Nhap2 (a,n);

//2.
 cout<<"\nSo Sach cua NXB \"MNXB084\" la : "<<dem a="" co="" cout="" loai="" n="" ncac="" sach="" sl=""> 500 la :\n";
 TimKiem (a,n);
 system ("pause");
}

</dem></a></string></iostream></span></pre>
</div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<br /></div>
<div style="margin-bottom: .0001pt; margin: 0in;">
<br /></div>
<br />
<div class="MsoNormal">
<br /></div>
</div>

[C]-- Chữa đề thi kết thúc học phần Nhập Môn Tin Học ĐH Điện Lực

Câu 1 : Viết bằng ngôn nghữ C #include <stdio.h> #include <coio.h> #include math.h> int GiaiThua (int a) { if (a ...

[C] kỹ thuật dịch bit trong C

quynhbkhn

Link Author

Title: [C] kỹ thuật dịch bit trong C
Author: quynhbkhn
Rating 5 of 5 Des:

Kỹ thuật dịch bit trong C: https://drive.google.com/file/d/0B8lenIE_orvxcVYyM1JvMzAxbVE/view?usp=sharing đọc thêm: http://dangngochoan...

<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXwhyphenhyphen3tIKtdTzA64Ns8AIhS2dOmWgnPpQU5bdYx5igbDfDuYTf60iNK9H4ZTqKZSl9PfDu5recNdnvbfMAaJdPljSLy6j_aW8v24v3EUqd1G-I3zBk0wdsy6H42nyS_bBu5JiiqD5PoKg/s1600/1546297_1593311360904079_3771238221108995967_n.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXwhyphenhyphen3tIKtdTzA64Ns8AIhS2dOmWgnPpQU5bdYx5igbDfDuYTf60iNK9H4ZTqKZSl9PfDu5recNdnvbfMAaJdPljSLy6j_aW8v24v3EUqd1G-I3zBk0wdsy6H42nyS_bBu5JiiqD5PoKg/s1600/1546297_1593311360904079_3771238221108995967_n.png" /></a></div>
<br />
Kỹ thuật dịch bit trong C:<br />
<a href="https://drive.google.com/file/d/0B8lenIE_orvxcVYyM1JvMzAxbVE/view?usp=sharing" target="_blank">https://drive.google.com/file/d/0B8lenIE_orvxcVYyM1JvMzAxbVE/view?usp=sharing</a><br />
đọc thêm:<br />
<a href="http://dangngochoangthanh.blogspot.jp/2010/09/toan-tu-dich-bit.html" target="_blank">http://dangngochoangthanh.blogspot.jp/2010/09/toan-tu-dich-bit.html</a>

[C] kỹ thuật dịch bit trong C

Kỹ thuật dịch bit trong C: https://drive.google.com/file/d/0B8lenIE_orvxcVYyM1JvMzAxbVE/view?usp=sharing đọc thêm: http://dangngochoan...

[C/C++] Chữa đề thi đại học điện lực ca 3

quynhbkhn

Link Author

Title: [C/C++] Chữa đề thi đại học điện lực ca 3
Author: quynhbkhn
Rating 5 of 5 Des:

Đề bài: Nhập m,n từ bàn phím.(m,n>2) Tính tổng: S = 1+ 2!/(m-2)! + ...+ n!/(m-n)! nếu m>n S = 1+ 2!/(n-2)! + ...+ n!/(n-m)! nếu m&...

Đề bài:<br />
Nhập m,n từ bàn phím.(m,n>2)<br />
Tính tổng:<br />
S = 1+ 2!/(m-2)! + ...+ n!/(m-n)! nếu m>n<br />
S = 1+ 2!/(n-2)! + ...+ n!/(n-m)! nếu m<=n<br />
Code:<br />
#include<stdio.h><br />
<br />
int giaithua(int n)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int tich = 1;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for(int i=2;i<=n;i++) tich = tich*i;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>//1*2*...*n<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>return tich;<br />
}<br />
<br />
float tinhS(int n,int m)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>float S = 1;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for(int i=2;i<=m;i++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>S = S + (float)giaithua(i)/(float)giaithua((n-i));<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>return S;<br />
}<br />
int main()<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int m,n;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>do{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>printf("Nhap m: "); scanf("%d",&m);<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>printf("Nhap n: "); scanf("%d",&n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}while(m<=2||n<=2);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>if(n>=m)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>printf(" Tong S = %5.2f",tinhS(n,m));<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>else<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf(" Tong S = %5.2f",tinhS(m,n));<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>return 0;<br />
}

[C/C++] Chữa đề thi đại học điện lực ca 3

Đề bài: Nhập m,n từ bàn phím.(m,n>2) Tính tổng: S = 1+ 2!/(m-2)! + ...+ n!/(m-n)! nếu m>n S = 1+ 2!/(n-2)! + ...+ n!/(n-m)! nếu m&...

[C/C++] Cách tìm số hoàn hảo

quynhbkhn

Link Author

Title: [C/C++] Cách tìm số hoàn hảo
Author: quynhbkhn
Rating 5 of 5 Des:

Số hoàn thiện là các số nguyên dương n sao cho: n = s(n), trong đó, s(n) là hàm tổng giới hạn các ước của n (nghĩa là tổng các ước ...

<div style="background-color: white; color: #252525; font-family: sans-serif; font-size: 14px; line-height: 22.3999996185303px; margin-bottom: 0.5em; margin-top: 0.5em;">
Số hoàn thiện là các <a href="http://vi.wikipedia.org/wiki/S%E1%BB%91_t%E1%BB%B1_nhi%C3%AAn" style="background: none; color: #0b0080; text-decoration: none;" title="Số tự nhiên">số nguyên dương</a> n sao cho:</div>
<dl style="background-color: white; color: #252525; font-family: sans-serif; font-size: 14px; line-height: 22.3999996185303px; margin-bottom: 0.5em; margin-top: 0.2em;"><dd style="line-height: 1.6; margin-bottom: 0.1em; margin-left: 1.6em; margin-right: 0px;">n = s(n),</dd></dl>
<div style="background-color: white; color: #252525; font-family: sans-serif; font-size: 14px; line-height: 22.3999996185303px; margin-bottom: 0.5em; margin-top: 0.5em;">
trong đó, s(n) là <a class="new" href="http://vi.wikipedia.org/w/index.php?title=H%C3%A0m_t%E1%BB%95ng_gi%E1%BB%9Bi_h%E1%BA%A1n_c%C3%A1c_%C6%B0%E1%BB%9Bc&action=edit&redlink=1" style="background: none; color: #a55858; text-decoration: none;" title="Hàm tổng giới hạn các ước (trang chưa được viết)">hàm tổng giới hạn các ước</a> của n (nghĩa là tổng các <a class="new" href="http://vi.wikipedia.org/w/index.php?title=%C6%AF%E1%BB%9Bc_ch%C3%ADnh_th%E1%BB%A9c&action=edit&redlink=1" style="background: none; color: #a55858; text-decoration: none;" title="Ước chính thức (trang chưa được viết)">ước chính thức</a> của n), hoặc:</div>
<dl style="background-color: white; color: #252525; font-family: sans-serif; font-size: 14px; line-height: 22.3999996185303px; margin-bottom: 0.5em; margin-top: 0.2em;"><dd style="line-height: 1.6; margin-bottom: 0.1em; margin-left: 1.6em; margin-right: 0px;">σ(n) = 2n,</dd></dl>
<div style="background-color: white; color: #252525; font-family: sans-serif; font-size: 14px; line-height: 22.3999996185303px; margin-bottom: 0.5em; margin-top: 0.5em;">
trong đó, σ(n) là <a class="new" href="http://vi.wikipedia.org/w/index.php?title=H%C3%A0m_t%E1%BB%95ng_c%C3%A1c_%C6%B0%E1%BB%9Bc&action=edit&redlink=1" style="background: none; color: #a55858; text-decoration: none;" title="Hàm tổng các ước (trang chưa được viết)">hàm tổng các ước</a> của n (nghĩa là tổng các ước của n, bao gồm cả n).</div>
<div style="background-color: white; color: #252525; font-family: sans-serif; font-size: 14px; line-height: 22.3999996185303px; margin-bottom: 0.5em; margin-top: 0.5em;">
<div style="line-height: 22.3999996185303px; margin-bottom: 0.5em; margin-top: 0.5em;">
<a href="http://vi.wikipedia.org/wiki/Euclid" style="background: none; color: #0b0080; text-decoration: none;" title="Euclid">Euclid</a> đã khám phá ra 4 số hoàn thiện nhỏ nhất dưới dạng: 2<sup style="line-height: 1em;"><i>n</i>−1</sup>(2<sup style="line-height: 1em;"><i>n</i></sup> − 1):</div>
<dl style="line-height: 22.3999996185303px; margin-bottom: 0.5em; margin-top: 0.2em;"><dd style="line-height: 1.6; margin-bottom: 0.1em; margin-left: 1.6em; margin-right: 0px;">khi <i>n</i> = 2:   2<sup style="line-height: 1em;">1</sup>(2<sup style="line-height: 1em;">2</sup> − 1) = 6</dd><dd style="line-height: 1.6; margin-bottom: 0.1em; margin-left: 1.6em; margin-right: 0px;">khi <i>n</i> = 3:   2<sup style="line-height: 1em;">2</sup>(2<sup style="line-height: 1em;">3</sup> − 1) = 28</dd><dd style="line-height: 1.6; margin-bottom: 0.1em; margin-left: 1.6em; margin-right: 0px;">khi <i>n</i> = 5:   2<sup style="line-height: 1em;">4</sup>(2<sup style="line-height: 1em;">5</sup> − 1) = 496</dd><dd style="line-height: 1.6; margin-bottom: 0.1em; margin-left: 1.6em; margin-right: 0px;">khi <i>n</i> = 7:   2<sup style="line-height: 1em;">6</sup>(2<sup style="line-height: 1em;">7</sup> − 1) = 8128.</dd><dd style="line-height: 1.6; margin-bottom: 0.1em; margin-left: 1.6em; margin-right: 0px;"><br /></dd></dl>
</div>
Đây là code:<br />
<br />
#include<stdio.h><br />
<br />
bool soHoanHao(int n)<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int tongUoc = 0;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>for(int i=1;i<n;i++)<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>{<br />
<span class="Apple-tab-span" style="white-space: pre;">  </span>if(n%i==0) tongUoc = tongUoc+i;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>}<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>if(tongUoc == n) return true;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>else return false;<br />
}<br />
int main()<br />
{<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>int n;<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>printf("Nhap n:");<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>scanf("%d",&n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>if(soHoanHao(n)==true) printf("%d la so hoan hao!",n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>else printf("%d khong phai la so hoan hao!",n);<br />
<span class="Apple-tab-span" style="white-space: pre;"> </span>return 0;<br />
}<br />
để hiểu biết thêm các bạn truy cập:<a href="http://hocccoban.org/2014/12/07/cc-cach-tim-so-hoan-hao.html">http://hocccoban.org/2014/12/07/cc-cach-tim-so-hoan-hao.html</a>

[C/C++] Cách tìm số hoàn hảo

Số hoàn thiện là các số nguyên dương n sao cho: n = s(n), trong đó, s(n) là hàm tổng giới hạn các ước của n (nghĩa là tổng các ước ...

Chữa đề thi giữa kỳ đại học điện lực câu 2

quynhbkhn

Link Author

Title: Chữa đề thi giữa kỳ đại học điện lực câu 2
Author: quynhbkhn
Rating 5 of 5 Des:

Xem cách làm tại: tải về

Chữa đề thi giữa kỳ đại học điện lực câu 2

Xem cách làm tại: tải về

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