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