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