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