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