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