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