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