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