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