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