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