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