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