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