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