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