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