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