Problem running recursive program!

I am trying to run the recursive program for the rod cutting problem. My code compiles but fails to build. I am using MS Visual Studio 2010, here's the code:

Code:

---

#include<stdio.h>
#include<stdlib.h>

#define MAX(a,b) ((a)> (b) ? (a) :(b))

int max_revenue (int *price, int length)
{
        int q , i;
        if (length == 0)
                return 0;
        q = -1;
        for (i = 1; i <=length; i++)
        {
                q = MAX(q, (price[i-1] + max_revenue(price, length-i)));
        }
        return q;
}

int main()
{
        int *price;
        int max_price;       
        price = (int *)malloc(4*sizeof(int));
        price[0] = 1;
        price[1] = 5;
        price[2] = 8;
        price[3] = 9;
       
        max_price = max_revenue (price, 4);
        return 0;
}

---

I get an error- unresolved externals. Please help!

Dunno - you'll have to post your actual error messages, because it compiles OK here.

I can't even tell you what the mistake was, such a silly mistake :( , I accidentally made a WinMain project so it was expecting a WinMain function instead of int main, it runs easily now, wasted almost an hour on it. Thanks for your reply