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