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