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