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