실행시간 확인

알고리즘 실행 시간 체크하기

#include <chrono>

std::chrono::system_clock::time_point t_start = std::chrono::system_clock::now()
//start time

std::chrono::system_clock::time_point t_end = std::chrono::system_clock::now()
//end time

std::chrono::duration<double> t_duration = t_end - t_start;

std::cout << "takes time " << t_duration.count() << "sec" << std::endl;