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

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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