#include <iostream>
#include <typeinfo>
using namespace std;

template <class T1, typename T2>
int howmany(T1* arr, T2 mn, T2 mx, int size) {
    int count = 0;
    for (int i = 0; i < size; ++i)
        if (arr[i] > mn && arr[i] < mx) ++count;

    // test
    cout << "T1=" << typeid(T1).name() << " "
         << "T2=" << typeid(T2).name() << " ";

    return count;
}

int main() {
    double mnd = 0, mxd = 10;
    int    mni = 0, mxi = 10;
    double tabd[] = {-2, -1, 2, 5, 7, 11};
    int    tabi[] = {-2, -1, 2, 5, 7, 11};

    int ii = howmany(tabi,mni,mxi,6);
    cout << "res=" << ii << endl;

    int id = howmany(tabi,mnd,mxd,6);
    cout << "res=" << id << endl;

    int di = howmany(tabd,mni,mxi,6);
    cout << "res=" << di << endl;

    int dd = howmany(tabd,mnd,mxd,6);
    cout << "res=" << dd << endl << endl;

    int xx = howmany<double,double>(tabd,mni,mxi,6);
    cout << "res=" << xx << endl;
}