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