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;
 *    ****    *   *   **** * *** ********  **  **   ****    **  *       
* *  *   ** ***  *** **  * *******  ***   
   **   *      *** *  *         ** ** *    * *    *  
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!
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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