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