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