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