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