for-record-time-spent

time-spent-for-cpp.cpp

#include <chrono>

using namespace std;
using namespace std::chrono;


auto start = system_clock::now();

// do something...

auto end = system_clock::now();
auto duration = duration_cast<microseconds>(end - start);
cout << "Time spent: "
     << double(duration.count()) * microseconds::period::num /
            microseconds::period::den
     << "s" << endl;