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