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

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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