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