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