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