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()
{
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* *** **    **    **** * * 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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****   ** *  *   *  * *** ** ***  ** * **
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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!
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 *  *   (){
*  **** *  **
*  *** * *  ** **  of x and y: ****** 
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   * *****
****
  ** *
**  * * *  * **   ***  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