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