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