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#pragma once
#include <algorithm>
#include <cassert>
#include <deque>
#include <iostream>
#include <sstream>
#include <iterator>
#include <string>
#include <vector>
namespace Utils {
    using namespace std::literals::string_literals;
    template <typename E>
    constexpr typename std::underlying_type<E>::type to_underlying(E e) noexcept {
        return static_cast<typename std::underlying_type<E>::type>(e);
    }
 
    template <typename T>
    static constexpr T wrap(T val, T min, T max) {
        return (val > max) ? min : (val < min) ? max : val;
    }
 
    static std::vector<std::string> split(const std::string& s, const char delimiter = ' ') {
        std::vector<std::string> tokens;
        std::string token;
        std::istringstream tokenStream(s);
        while (std::getline(tokenStream, token, delimiter)) {
            tokens.push_back(token);
        }
        return tokens;
    }
 
    static constexpr std::string_view WHITEPACE{" \t\n\r\f\v"};
    static inline void rtrim(std::string& s, std::string_view t = WHITEPACE) {
        s.erase(s.find_last_not_of(t) + 1);
    }
    static inline void ltrim(std::string& s, std::string_view t = WHITEPACE) {
        s.erase(0, s.find_first_not_of(t));
    }
    static inline void trim(std::string& s, std::string_view t = WHITEPACE) {
        rtrim(s, t);
        ltrim(s, t);
    }
 
    template <typename T>
    static constexpr T clamp(T val, T min, T max) noexcept {
        return val < min ? min : val > max ? max : val;
    }
 
    template <class Container>
    static void sort(Container& c) {
        std::sort(std::begin(c), std::end(c));
    }
    template <class Container>
    static typename Container::iterator find(const Container& c, const typename Container::value_type& value) {
        return std::find(std::begin(c), std::end(c), value);
    }
    template <class Container>
    static typename Container::const_iterator find(const Container& c, const typename Container::value_type& value) {
        return std::find(std::begin(c), std::end(c), value);
    }
 
    template <class Container, typename Predicate>
    static typename Container::iterator find_if(const Container& c, Predicate pred) {
        return std::find_if(std::begin(c), std::end(c), pred);
    }
 
    template <typename T>
    static void quick_remove_at(std::vector<T>& v, std::size_t i) {
        assert(i < v.size());
        v[i] = std::move(v.back());
        v.pop_back();
    }
    template <typename T>
    static void quick_remove_at(std::vector<T>& v, typename std::vector<T>::iterator it) {
        assert(it != std::end(v));
        *it = std::move(v.back());
        v.pop_back();
    }
    template <class Container>
    static void insert_sorted(Container& v, const typename Container::value_type& item) {
        assert(true == std::is_sorted(begin(v), end(v)));
        const auto insert_pos(std::lower_bound(std::begin(v), std::end(v), item));
        v.insert(insert_pos, item);
    }
    template <class Container>
    static void print(const Container &v, const std::string& sep = ", "s) {
        using T = typename Container::value_type;
        std::copy(std::begin(v), std::end(v), std::ostream_iterator<T>{std::cout, sep});
    }
    template <class AssociativeContainer>
    static void print_map(const AssociativeContainer &map, const std::string& sep = "\n"s) {
        for (auto& elem : map) {
            std::cout << elem.first << ": " << elem.second << sep;
        }
    }
 
 
 
    //removing from sequence containers
    template <class T>
    static void remove(std::vector<T>& vector, T const& value) {
        vector.erase(std::remove(std::begin(vector), std::end(vector), value), std::end(vector));
    }
    template <class T>
    static void remove(std::deque<T>& deque, T const& value) {
        deque.erase(std::remove(std::begin(deque), std::end(deque), value), std::end(deque));
    }
    static void remove(std::string& string, char letter) {
        string.erase(std::remove(std::begin(string), std::end(string), letter), std::end(string));
    }
    template <class AssociativeContainer, class T>
    static void remove(AssociativeContainer& c, const T& key) {
        c.erase(key);
    }
 
    //filtered remove from sequence containers
    template <class T, typename Predicate>
    static void remove_if(std::vector<T>& vector, Predicate pred) {
        vector.erase(std::remove_if(std::begin(vector), std::end(vector), pred), std::end(vector));
    }
    template <class T, typename Predicate>
    static void remove_if(std::deque<T>& deque, Predicate pred) {
        deque.erase(std::remove_if(std::begin(deque), std::end(deque), pred), std::end(deque));
    }
    template <class Predicate>
    static void remove_if(std::string& string, Predicate pred) {
        string.erase(std::remove_if(std::begin(string), std::end(string), pred), std::end(string));
    }
    template <class AssociativeContainer, class Predicate>
    static void remove_if(AssociativeContainer& c, Predicate pred) {
        auto i = std::begin(c);
        const auto last = std::end(c);
        while ((i = std::find_if(i, last, pred)) != last) {
            i = c.erase(i);
        }
    }
 
    //remove duplicates from sequence containers
    template <class T>
    static void unique(std::vector<T>& vector) {
        vector.erase(std::unique(std::begin(vector), std::end(vector)), std::end(vector));
    }
    template <class T>
    static void unique(std::deque<T>& deque) {
        deque.erase(std::unique(std::begin(deque), std::end(deque)), std::end(deque));
    }
    static void unique(std::string& string) {
        string.erase(std::unique(std::begin(string), std::end(string)), std::end(string));
    }
}