#pragma once

#include <iosfwd>

namespace aoc2019 {
    // Declarations of all implemented days.
    void day01_part1(std::istream &input, std::ostream &output);
    void day01_part2(std::istream &input, std::ostream &output);
    void day02_part1(std::istream &input, std::ostream &output);
    void day02_part2(std::istream &input, std::ostream &output);
    void day03_part1(std::istream &input, std::ostream &output);
    void day03_part2(std::istream &input, std::ostream &output);
    void day04_part1(std::istream &input, std::ostream &output);
    void day04_part2(std::istream &input, std::ostream &output);
    void day05_part1(std::istream &input, std::ostream &output);
    void day05_part2(std::istream &input, std::ostream &output);
    void day06_part1(std::istream &input, std::ostream &output);
    void day06_part2(std::istream &input, std::ostream &output);
    void day07_part1(std::istream &input, std::ostream &output);
    void day07_part2(std::istream &input, std::ostream &output);
    void day08_part1(std::istream &input, std::ostream &output);
    void day08_part2(std::istream &input, std::ostream &output);
    void day09_part1(std::istream &input, std::ostream &output);
    void day09_part2(std::istream &input, std::ostream &output);
    void day10_part1(std::istream &input, std::ostream &output);
    void day10_part2(std::istream &input, std::ostream &output);
    void day11_part1(std::istream &input, std::ostream &output);
    void day11_part2(std::istream &input, std::ostream &output);
    void day12_part1(std::istream &input, std::ostream &output);
    void day12_part2(std::istream &input, std::ostream &output);
    void day13_part1(std::istream &input, std::ostream &output);
    void day13_part2(std::istream &input, std::ostream &output);
    void day14_part1(std::istream &input, std::ostream &output);
    void day14_part2(std::istream &input, std::ostream &output);
    void day15_part1(std::istream &input, std::ostream &output);
    void day15_part2(std::istream &input, std::ostream &output);
    void day16_part1(std::istream &input, std::ostream &output);
    void day16_part2(std::istream &input, std::ostream &output);
    void day17_part1(std::istream &input, std::ostream &output);
    void day17_part2(std::istream &input, std::ostream &output);
    void day18_part1(std::istream &input, std::ostream &output);
    void day18_part2(std::istream &input, std::ostream &output);
    void day19_part1(std::istream &input, std::ostream &output);
    void day19_part2(std::istream &input, std::ostream &output);
    void day20_part1(std::istream &input, std::ostream &output);
    void day20_part2(std::istream &input, std::ostream &output);
    void day21_part1(std::istream &input, std::ostream &output);
    void day21_part2(std::istream &input, std::ostream &output);
    void day22_part1(std::istream &input, std::ostream &output);
    void day22_part2(std::istream &input, std::ostream &output);
    void day23_part1(std::istream &input, std::ostream &output);
    void day23_part2(std::istream &input, std::ostream &output);
    void day24_part1(std::istream &input, std::ostream &output);
    void day24_part2(std::istream &input, std::ostream &output);
    void day25_part1(std::istream &input, std::ostream &output);
    void day25_part2(std::istream &input, std::ostream &output);
}