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