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