各位帮忙看看哪里出问题了?

# include <iostream>

using namespace std;

template <typename T>;

T max(T a, T b, T c)
{
    if (a < b)
        a = b;
    if (a < c)
        a = c;

    return a;
}

int main(void)
{
    int ia = 4, ib = 7, ic = 6;
    double d1 = 52.236, d2 = 2.365, d3 = 2.362;
    long l1 = 12365, l2 = 23145, l3 = 45678;
    int i;
    double d;
    long l;

    i = max(ia, ib, ic);
    d = max(d1, d2, d3);
        l = max(l1, l2, l3);

    cout << "i = " << i << endl;
    cout << "d = " << d << endl;
    cout << "l = " << l << endl;

    return 0;
}