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