#include <vector>
#include <algorithm>
#include <iostream>
using namespace std;

template <typename T>
class LessThan {
public:
    LessThan(T val) : comp(val) {}
    void setComp(const T& val) {comp = val;}
    T getComp() {return comp;} const
    bool operator() (const T& value)
    {
        return value < comp;
    }
private:
    T comp;
};

int main() {

    int iarr[10] = {2,4,55,6,66,10,22,14,70,1234};
    vector<int> v1(iarr, iarr+10);

    double darr[10] = {234.4, 11.1, 22.2, 500.0, 50.0, 11.1, 12.1, 600.6, 99.9, 0.0};
    vector<double> v2(darr, darr+10);

    int val = 20;
    LessThan<int> lt(val);

    int count1 = count_if(v1.begin(), v1.end(), lt);
    cout << "There are " << count1 << " values less than " << val << endl;

    double dal = 100.0;
    LessThan<double> lt2(dal);

    count1 = count_if(v1.begin(), v1.end(), lt2);
    cout << "There are " << count1 << " values less than " << dal << endl;

    return 0;

}