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