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