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