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