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