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