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