cherichy

#include <chrono>
#define TIMER(Run) [&](){\
    auto t1 = std::chrono::system_clock::now();\
    auto res = Run;\
    auto t2 = std::chrono::system_clock::now();\
    auto dt = std::chrono::duration_cast<std::chrono::milliseconds>(t2-t1).count();\
	std::cout << #Run << " elapsed time: " << dt << "ms" << std::endl;\
	return res;\
}()