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