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