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