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