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