#pragma GCC optimize "-O3"

#include <iostream>
#include <vector>
#include <chrono>

using namespace std;
using namespace std::chrono;

int main() {
    high_resolution_clock::time_point roundStart = high_resolution_clock::now();

    int vec[1000000];

    for (int i = 0; i < 1000000; ++i) {
        vec[i] = i + 1;
    }

    for (int i = 0; i < 1000000; ++i) {
        int a = vec[i];
    }

    high_resolution_clock::time_point end = high_resolution_clock::now();
    duration<double> time_span = duration_cast<duration<double>>(end - roundStart);

    cout << (time_span.count() * 1000) << "ms" << endl;
}