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