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;
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 **  *** * * * ***     ** * *
*******   ** ***    ****   * *
 *  * **** ***** **  ***** * * *  
    *  * *    ** **** *     **     *     ***   ** *
  * ***   *** *   *  * *  **** 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;

 * ******** * ** * **   ***   ** *   ** * ** * * *    *  **** **  * *    * **  * *


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** * **    *  **  *   ** ** *  ****  * 

   *   *    * ** ***   **  * * *  * *     ** ** *    * **     );
 * *  *  * *  * *** ** **   ****  * *  ***** *       *   ** * 
 *** **   *       *  * * * 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;
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 *** ***  **  ** *** *** *  ***  ***  
* ** **    * * *  **   *     * * ***       ****    **  *
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;
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 **  *  * *****  *** * *       
 *  ****  ** ***** * ** ***  * 
 *   *      *  *  **  ***   * ***  *    ***** ***    * *   *
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