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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}

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(){
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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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 ** * 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
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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;

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

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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
  *   *  ***    **  ** 
  ** * ** main(){
int a,b;

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

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return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
*  **  ****    * **    
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*** *  *  * * * ***    *****   = x;
*   * * *    *** *  ** * = y;
** *  *   ** * * *  ** ****  = temp;
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  * ****  ****  *    *  **    * **     ** *   * *  x,y);
 *      *** *  *    * *****  
 *** ****   *    *  **   *   ****   *  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output