aoc2024/day21/input.h

#ifndef INPUT_H
#define INPUT_H

#include <string> 
#include <optional>

std::string ReadFile(const std::string &filepath);

class Lines {
private:
  std::string_view text_;

public:
  explicit Lines(std::string_view text) : text_(text) {}
  std::optional<std::string_view> Next();
};

#endif