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