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

u

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