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