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