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