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