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