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