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