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;
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 ***** **   *   *     
*****    **    * ** *******  * 
*       * *** ***  ***   *   **    * *  * *   **  *  
*    ****    **** *** *  *   * 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;

* ** ***  * **** **    ** * * ****  ** **  *  **  *  * **    ** *  *** ** *   *  * 


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*   ** *  **** **  ** ** *** *  ****** **

 *  *   * *     * ** ***** ** * *      *** ****** );
* **   * *   * *   ***** * * ** * *   **    *    * *  
 *   *   * ***         *  *  ** ***** 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;
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*     ** **  ** *** *   * * *   ****   **
******   *  **  * *** *** **  *** * ** ** **      *   *
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;
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****** * ******** ****** *
  * **    * * ***      ** ** 
  *  * *  * *  **** **      *  *    * * * *     ***  *
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