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