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