#pragma once
#include <chrono>

class Timer {
public:
  void start();
  void stop();
  long long elapsedMs() const;

private:
  std::chrono::time_point<std::chrono::high_resolution_clock> startTime;
  std::chrono::time_point<std::chrono::high_resolution_clock> endTime;
  bool running = false;
};