int max(int a, int b) {
    if (a > b) {
        return a;
    }
    return b;
}

int knapsack(int[] v, int[] w, int n, int maxw)
{
    if (maxw < 0) {
        return -99999999;
    }
    else if (maxw == 0) {
        return 0;
    }
    else if (n < 0) {
        return 0;
    }

    var include = v[n] + knapsack(v, w, n - 1, maxw - w[n]);

    var exclude = knapsack(v, w, n - 1, maxw);

    return max(include, exclude);
}


int program(int argc, string[] argv)
{
    var v = new int[]{12, 1, 33, 4, 1, 2, 1, 59, 4};
    var w = new int[]{2, 10, 34, 9, 20, 26, 14, 5, 4};

    var maxw = 30;

    var n = 4;

    var res = knapsack(v, w, 8, maxw);

    return res;
}