#include <iostream>
#include <regex>
#include <vector>
#include <map>
#include <string>
#include <fstream>
#include <algorithm>

class TimeLabel
{
    int h, m, s;
public:
    TimeLabel (std::string l)
    {
        //hh:mm:ss
        //01:34:67
        h = std::stoi(l.substr(0, 2));
        m = std::stoi(l.substr(3, 2));
        s = std::stoi(l.substr(6, 2));
    }
    std::string getTime()
    {
        return (std::to_string(h).size() == 2 ? std::to_string(h) : "0" + std::to_string(h) ) + ":" +
                (std::to_string(m).size() == 2 ? std::to_string(m) : "0" + std::to_string(m) ) + ":" +
                (std::to_string(s).size() == 2 ? std::to_string(s) : "0" + std::to_string(s) );
    }
    std::string addSeconds(int sec)
    {
        s += sec;
        m += s/60;
        s %= 60;
        h += m/60;
        m %= 60;
        return this->getTime();
    }
};

int main()
{
    std::string line;
    std::string subtitles_all, subtitles_all_copy;
    std::vector<std::string> matches;
    std::fstream file;
    file.open("23.txt", std::ios_base::in);

    while(std::getline(file, line))
        subtitles_all += line + "\n";
    subtitles_all_copy = subtitles_all;

    std::smatch m;
    while (std::regex_search (subtitles_all_copy, m, std::regex("[0-9]{2}:[0-9]{2}:[0-9]{2}")))
    {
        for (auto x : m)
            matches.push_back(x);
        subtitles_all_copy = m.suffix().str();
    }

    std::reverse(matches.begin(), matches.end());
    std::cout << "Podaj o ile sekund przesunac (o ile sekund pozniej maja pokazac sie napisy):\n>";
    int p;
    std::cin >> p;

    for(auto mat : matches)
    {
        TimeLabel tl(mat);
        subtitles_all = std::regex_replace(subtitles_all, std::regex(mat), tl.addSeconds(p));
    }

    file.close();

    file.open("23.txt", std::ios_base::out | std::ios_base::trunc);
    file << subtitles_all;
    file.close();

    return 0;
}