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