Need help with an error please

Hey all, ive just started to learn C++ and this is my first post. Im making a simple program just to put together all that ive learned so far, but im getting the error:

Error C2447: '{' : Missing function header (old style formal list?)

Below is my code, thanks for any help in advance

Code:

---

#include <iostream>

using namespace std;

// This is my very first project, It has no real use, i dont even know what it is
// its just a simple program for me to mess around with what ive learned so far.
// By Michael Clarke 8/6/2007

        int money = 100;
        int total = 0;
        int buy = 0;

int main();
{


        // Money is used for how much money i have in pence.
        // Total is something i will use later to help with the numbers.
    // buy will be used for input from the user.

        cout << "You have: " << money << endl;
        cout << "Would you like to buy a coke for 75p?" << endl;
        cout << "please press '1' for yes and '0' for no: ";
        cin >> buy;
       
        if buy == 1;
        {
                cout << "Thank you, That will be 75 Pence please" << endl;
                money - 75;
        }

        if buy == 0;
        {
                cout << "Ok, Come again!" << endl;
        }

        else;
        {
                cout << "Please input a 0 for no or a 1 for yes" << endl;
        }

        cout << "thank you, have a nice day!" << endl;
        cout << "You have: " << money << "in Change" << endl;
}

---

> int main();
This has a trailing ; which you don't need.

> if buy == 0;
Missing ( ), and spare ;
Try
if ( buy == 0 )

Thanks salem, your answer worked. i also had to change 'money - 75' to 'money = (money - 75)

After that is was fine thanks again =)

You might consider using money -= 75 which is the short form of money = money - 75. The result is the same but I prefer -=.