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