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