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