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