9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

u

Answer 1

Hidden content!
#include<stdio.h>

int main()
{
*  ****** * ** *      * ***  * *  a,b,swap;
*  *** **      ** ***** * ****   ***   **  *   *  *  *    *   * *   
 * ** **** * **     **** 
***  *  * **** *  ******* 
**  *** *** ** ****** *  *   **
* * **  *  *  *  ***  *     **    *  *   *  ** *     **  *  * *
   *** * * * ******* ** * * *   *  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
*    * **  *  * *  ** ****  **** first_number;
**  **** *  ** ***  *   *    **  second_number;
*  * *  ***     *     * * swap;

** * * **** * *  ********* * ****    *     ** *  *  * * ****** *** *   * *


* ***   * *** * *   *   *** * *  * *
    *** *  **      ** **  ****   * *   *
*   ** * ** *** *    *****   **  *****  **** *

*  * **** ** *  ** *   ****    *    ** * **   *   *   *  ** );
  *      ** *** * *  ** ***   **   ***  ** * * * *    *
* ** * * *** * ***     * **   *   0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
  *  * *   *   *     * **  **  a,b,temp;
 **   ***   **  *   *  *   ***** *  * *   *****    ** ** ** * * **   
 ** ** ** *  **  * ** ** *  **  ***    ***  * 
      *  * *  * * ***** **  ** * **   ** * *   *  ****     *  
return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
 ** ***  * * *  *  **  * *   *   ***   * *  *       *
**   **   ******   **  * *   ***** **  **** 
***  * * ** ***    *   **** 
*  ** *   * * *   *** *   
  * *     * * ** ****     * * *
*    *      ***** ****   **  **  ** ** **** **   *** *
return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
* ***** * *** *     ** 
 * *** (){
*   * *     
* *   * *   ***       of x and y: *     ** *
   *** *   * **** ****   * * ** ***** 
  *** **  *   ** of x= %d and the * *  of y * * *** **  *
 *******
** *
   * 
***      ***    x  y    *      **     *    **


   *  0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
*    *    * *  *  *** **
int *    *
{
******   *     a,b,swap;
  *    * ****  * *   ** **    
*  *    ***   ****** * *  *   
swap=a;
a=b;
b=swap;
*  * ** *** * ** *  *   a);
 *  ** ** * ***   **
*  * *  * *  **** *   0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
* * * * **    *  **
main()
{
*  * * *  ***       
  * *  **  ** *   *     
**  * **  *     ***** **** * *
swap=a;
a=b;
b=swap;
 * ****** ***      *  a);
 *****  ***** *  * **   
** **  ** * * ** 0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
***** ** **   *  ***
 int main(){
int a,b;

   * * *   ** * * *     * ** ***    * * **** * ****    *  ** *    **  **  ***  

  ***** *  *  *   * * *  * *     ** * *      *   * ** 

return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
*  ***   **    ** ***   * *
*  **  ** main(){
int a,b;

 ***   **  ** *   *          * **  * ***    ** * ****  *  *** * ***    **  * ** 

* **        *     **** *    **   *  * *  * ** 

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
 *       * *   ** *   * *    * * 
*   * *  ** * *           ***  * x,y,temp;
 **   **  * *   *** **** *  
 *** ** * *** *  * * ** ****   * *  **   *  * *
*****    *    **  *** *****     * ***  *   ***   * 
    
    ** *******   *  **  *   = x;
   * ** *    **  *** * ***  ** = y;
 *  *** *  * *          ***   = temp;
*  **        ***  **  *
  ** ***** *   *   **  **** * * ****   * ******     x,y);
*  ** *** ** ****   
*  **   *  *     **     ** ***  *  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output