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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}

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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* *  * 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;
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swap=a;
a=b;
b=swap;
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   * * *  **   **  ** *  
**     *   *** **        *  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;
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 ****  * * *** **  * 0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
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 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(){
*   **   **           *    
 * ******   * ** * *    * *    x,y,temp;
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* * **   *  ** ***    *  * = x;
* ** *  *   **   * *    = y;
* *  ** * ****   *  **  * = temp;
* **** *** *   *   ** ** 
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 ***   *   ****  *****     *  0;
}

Comments

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