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