Submission #720115

#	Time	Username	Problem	Language	Result	Execution time	Memory
720115		Cyanmond	Pilot (NOI19_pilot)	C++17	Compilation error	0 ms	0 KiB

pilot

#include <bits/stdc++.h>

#include "atcoder/segtree"
int op(int a, int b) {
    return a + b;
}
int e() {
    return 0;
}

using i64 = long long;

i64 c2(i64 x) {
    return x * (x + 1) / 2;
}

void solve() {
    int N, Q;
    std::cin >> N >> Q;
    std::vector<int> H(N), Y(Q);
    for (auto &e : H) std::cin >> e;
    for (auto &e : Y) std::cin >> e;
    std::vector<std::pair<int, int>> queries(Q);
    for (int i = 0; i < Q; ++i) queries[i] = {Y[i], i};
    std::sort(queries.begin(), queries.end());
    std::vector<std::pair<int, int>> mountains(N);
    for (int i = 0; i < N; ++i) mountains[i] = {H[i], i};
    std::sort(mountains.begin(), mountains.end());

    atcoder::segtree<int, op, e> seg(N + 2);
    seg.set(0, 1);
    seg.set(N + 1, 1);
    int j = 0;
    for (int i = 0; i < N; ++i) seg.set(i + 1, 1);
    std::vector<i64> answer(Q);
    i64 countFlights = 0;
    for (int i = 0; i < N; ++i) {
        while (j != Q and queries[j].first < mountains[i].first) {
            answer[queries[j].second] = countFlights;
            ++j;
        }
        const int m = mountains[i].second + 1;
        const int r = seg.max_right(m + 1, [](int x) {
            return x == 0;
        });
        const int l = seg.min_left(m, [](int x) {
            return x == 0;
        }) - 1;
        seg.set(m, 0);
        countFlights -= c2(r - m - 1);
        countFlights -= c2(m - l - 1);
        countFlights += c2(r - l - 1);
    }
    while (j != Q) {
        answer[queries[j].second] = countFlights;
        ++j;
    }
    for (const auto e : answer) std::cout << e << '\n';
}

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    solve();
}

Compilation message (stderr)

pilot.cpp:3:10: fatal error: atcoder/segtree: No such file or directory
    3 | #include "atcoder/segtree"
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.