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