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