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!
  *   ** **  * ****  **

int main()

{
 *  **  *    * *     * *  **  *** ** i,j,k;
  *  * * * *** * *  * ** ***    *  *   ** \n ** *** ****  *** * **  *** *
**  ** *** *    ** ** * *    ** * *  **** * ** * ****   

}

Comments

prog.c:3:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()//\xe4\xbd\x8d\xe7\xbd\xae\xe4\xba\x92\xe6\x8f\x9b*
 ^~~~

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include<stdio.h>
int main()
{
*  **  ** ** *  **       * *  x,y,tem=0;
       *     *  * *  * ***   * * *****     * *  ***** **   ** ****
   **** **  *   ** * ***  *
* ** *    * *  *   ** **    * ****
* ***     * ***   ** *    **   ** *
** * * *    *   * *  **  *  **   ******* * ** * *  
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
**  ****   ** * *   * *   * ******* x,y,temp;

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

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

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

  ** ***    *  * **  * ***   0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include   *   *** *    * **

int main()

{
* *  **   *   * *  ****        **  x,y;
**  **  *** * *    ** *** ** ****  ***   *  *   *  ** * ** *** * *   
* *  *    * *  ** **    *  *  * * * * *   *** ** * 

*****  *** ***   ** **** *** 0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
#include <stdio.h>
#include ***** **  ** *  

int main()
{
 * ** ** * *  ****  **  * x, y ,temp;

   **  *** **   *    * * *   *     ** * * * ** **   *  &x);
 *** *  *    * *      **** **   ********  *   &y);

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

* ****   *   ** * *  **   ***       * ** * *      x);
** ***  * ****  * *   * **    ** *  **   **   ***  y);
  *  *    *  * ** *** ** ** ****  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 6

Hidden content!
#include <stdio.h>

int main()
{
 ** *   *  ** ***  *** * ** **** *  x;
 * * *** * * ***** *    ****    y;
  * *   ****** ** *    ** *      temp;

**   * ***** ****    *****   *   *** *** *** *     *    *** &y);

   * *   * *  *  ****  **** = x;
   *   ** ** *  **  *** = y;
  *   ** *    *** ******  * *** = temp;

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

**  **  * **      ***  *  **  * *  **   0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
#include <stdio.h>
int main()
{
* ***** ** *** * *  *  **    first,second,temp;
 ** *******   ***  ***** ** **  * * *  *   *   ***  * **** *** *   **
     ***** ** **  *** * ** =second;
 * *  ** **    *   *  * *   *  **  =first;
 * *    *     * * ***** * ** ** *  = temp;
**  *  * * **  **** ** 
 ** *  *****   *     ****  ******   ********  ***  *   first);
* ** ** *  **** **   * *** *  *   ** * ******  second);

 ** ***     * ** * ** 
**  *        * ***  ** * * **  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 8

Hidden content!
#include ** **** * *

int main()

{
*** * * ***** ** ** x, y, temp;




**** * ** ** * * **** ** * ** ** * **** * * * * &x, &y);
****** * ** * ** * ** ******* * = *** * * * * *


** * * * ** * * * *** = x;
** * * * * * ** * * * ** ** ***** y;
** * * * ** * ** **** *** * * * temp;
* * * *** ** ** ** *** * * = %d\ny = * * x, y);






* ** * * * 0;

Answer 9

Hidden content!
#include *



int main (void)



{
* ** * ** * ****** ** *** a,b,c,d;
****** *** * **** ** ** * * * * ** * *** *
* * * * ** * * * ** *** * * * ** ** **** * *** **


** ** ** **** * * **** * 0;

}

Answer 10

Hidden content!
#include * * ** * *

int main (void)

 {
* * x,y,z;


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


* ***** 0;
* ***