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