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