10-26 Exercise 1: Calculates and displays the GCD of 2 integers

Question

Write a program that asks the user to enter two integers, then calculates and displays their greatest common divisor (GCD).

寫一個輸入兩個整數 輸出它們的最大公因數程式

Hint: Use Euclidean Algorithm

使用歐幾里得演算法

Example input: 

12 28

Example output:

4

 

Answer 1

Hidden content!
#include<stdio.h>

int main(){

   ** ***  * **   ***    ****   a,b,i,max;

 *** ** **  **  * * ** ***    *  ** *** * ** **    **   * **   *

*   * * * * **** * *  *     **** *    *   **** *    **         **  
   *****   **      *  ****
   ** * * *** ****     **  * **   * **  * ** * *  **  ****  ****  *  ****  * ** ** 
* ***    ** *** *  **  **   *     ******   *   *   ***** * ** ***     ***     *** *   * * * *
    }

**  ***    *   ** **  * **   ** * *****   ***** *  * 

**** ** *  **** ** *   * *******  0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 2

Hidden content!
* *     ** * ** *  
int     ***
{
int   * 
**  ****   **** ** ** * *  
 * ***** *      ***  ** 
* * (a %   *
{
*   
a=b;
* 
}
* **** ** *  ***
** * 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 3

Hidden content!
# include<stdio.h>
int main(void)
{
 ***  ** ** * **    * *   ****  a,b,c;
 * *  * ** * *     ** ** *  * *** ***  *** **    **
    ******* ** * ***** ** * ** **  * *   *  ** * * * *
 * * ** ***  * ******  * *   (a % b!=0)
    {
*  ***** * *  * **   *** * * ** **   ***    *   * * ** * * * 
**   **** * ** * * * ** **  ***  *   *    *  ********  **  
 ** *     ** * *  * **   ****  ***    * * * **  * **** * 
  ** **   **** *   *  *
     ****   * **** * **  *  *  **  **** ** * ** ***  
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 4

Hidden content!
  ** *  *  **   *  *   ** 
int main (void)
{
int a,b,c;
* *  * ** *  * *** * ******  
**  **  ** *  ** *  ***** *
while ( a % b != 0){
 *** **    ***  * **  *   * *
*     **      * *  *  ** ***  **
 *   *   *** ** *   ** **   ** *  *
}
 **      ***** * * * ****
  ** * 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 5

Hidden content!
# include<stdio.h>
int main(void)
{
***  *   *  **  *   *** a,b,c;
****  ****  ***  ***    ****  ** * *** ** **  *  
*  *  **  **  ***  *        *  *** ** * *  * *****
*  *****  *  *  *  *  ***    *  (a % b!=0)
    {
*  **** ** * **  ** *** *** * *    **  *    *      *  ** 
 *    ** *** ***  *  * * ** ***    ** *** *   *   *** ***
   **  *  ****** *   *   **** * ** *   * ** * ** ******    
 * ** ** * *** **  *  **
* ****  *   *   * ****   ****** ** *  ** * ***
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 6

Hidden content!
**      * ** ** * *  *
int main (void)
{
int a,b,c;
  ** ** *  *   *****    *    *** 
*** * *         ** *****
while ( a % b != 0){
 * * ***   ** * **** ***    * 
  * *  ** * ** **  *  **  
*  *   **** *  * * **   *   *  
}
 ******   **  ** ** **
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 7

Hidden content!
 ** *  *   * * *   ** * 
int main  * 
{
int **
**     * * **    * * *  ** *** *   *   * 
      (a%b != 0){
**       *** ** **   **     * ****  = a%b;
   *** ** *   ***    *** * *   = b;
**      * *    * **** ** ***  ** = c;
}
* * * *  ** *****
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output

Answer 8

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
 **** *   * ***   * ** ***  a,b,i,max;
*     * *  * *    *    **     *  * **  %d",&a,&b);
**  **  * *  **   ** **   * * **         *   *** *  **** **   
* ***  * *  *** ***  *  * *  
********* *** * * * *** * *     *    * ***    *   **    **     ***  
  ***      ****   ***** *  **    **  * *  *** *   ** * *** *
 **  * * ****       *  *  *

 **   ****  *  * *  *   * *    ******   ** **** * **   ** * *    *   **     * 
  *  * ****  * **    **** * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output

Answer 9

Hidden content!
#include <stdio.h>
#include * * * ** *** *
int a,b;
int i;
int GCD=0;
int remainder1=0;
int main(){
***  ** *      ** **   ** * **** *  **** ** *    *   **   *  * ** * * 
  * **   *   *  ***   *  * **  (b!=0){
 ** **   *   **   *   ** ***  *** **  *    * **     * *   ** ******
** *   *** ** ***** * *   *         *  ** *    * ***** 
   ***   **  **   * *** ******  ****    *  ** *   * * *** **
* * * *   * * *    **  ***  **
*       **   * *****  ** ** (a==0){GCD=b;}
  *  * * ** * **  *****  (b==0){GCD=a;}
      ***  *  *  **** * **  *    *** ** *  * ** * * *
*  **  * * *** *   *    *  ****** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output

Answer 10

Hidden content!
#include * *  **** *   *  
int main (void)
{
 *  *** *  ***   ** ***    a,b,remainder;
*  *   *  ** *  * **  * **   **   ** * **** %d", &a,&b);

  *    * * ***  ***** **   *  (b != 0){
* **   * ****  ****  *  ** **   *  **   **   *  * * **   ** * = a % b ;
 * * * *       *  ** *        **  *****   **  * ******* = b ;
 * *  ***  ** ***  ** * *********   *   ** ***   = remainder ;
* *** *  *  ** ** *  ****** ** 

  *    ** *  * * *  ***** *** *    ***     

*  *    * ***** * ******** ** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output