#pragma once
#include <iterator>
template<typename T, typename Iterator>
Iterator Find(const T& value, Iterator first, Iterator last, std::bidirectional_iterator_tag) {
while (first != last) {
if (*first == value)
return first;
++first;
}
return last;
}
template<typename T, typename Iterator>
Iterator Find(const T& value, Iterator first, Iterator last, std::random_access_iterator_tag) {
Iterator end = last;
while (first != last) {
Iterator mid = first + (std::distance(first, last) / 2);
if (*mid < value)
first = mid + 1;
else
last = mid;
}
if (*last == value)
return last;
return end;
}
template<typename T, typename Iterator>
Iterator Find(const T& value, Iterator first, Iterator last) {
typedef typename std::iterator_traits<Iterator>::iterator_category sort_type;
return Find(value, first, last, sort_type());
}