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