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