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