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