#682992 (C++17) No.1625 三角形の質問

提出ソース

結果

問題	No.1625 三角形の質問
ユーザー	👑 hitonanode
提出日時	2021-07-24 00:30:44
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	3,641 ms / 6,000 ms
コード長	14,743 bytes
コンパイル時間	2,602 ms
コンパイル使用メモリ	174,776 KB
実行使用メモリ	253,040 KB
最終ジャッジ日時	2023-09-26 05:47:04
合計ジャッジ時間	54,435 ms
ジャッジサーバーID （参考情報）	judge13 / judge15

このコードへのチャレンジ
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テストケース

テストケース表示

入力	結果	実行時間実行使用メモリ
testcase_00	AC	2 ms 4,376 KB
testcase_01	AC	157 ms 21,468 KB
testcase_02	AC	1,202 ms 93,848 KB
testcase_03	AC	1,471 ms 124,088 KB
testcase_04	AC	951 ms 79,084 KB
testcase_05	AC	2,250 ms 157,556 KB
testcase_06	AC	3,536 ms 244,764 KB
testcase_07	AC	3,499 ms 245,908 KB
testcase_08	AC	3,567 ms 244,464 KB
testcase_09	AC	3,641 ms 245,740 KB
testcase_10	AC	3,633 ms 245,216 KB
testcase_11	AC	3,616 ms 245,084 KB
testcase_12	AC	3,618 ms 244,732 KB
testcase_13	AC	3,560 ms 245,224 KB
testcase_14	AC	3,572 ms 246,200 KB
testcase_15	AC	3,640 ms 246,048 KB
testcase_16	AC	474 ms 83,452 KB
testcase_17	AC	1,174 ms 206,792 KB
testcase_18	AC	122 ms 22,676 KB
testcase_19	AC	1,469 ms 253,040 KB

権限があれば一括ダウンロードができます

コンパイルメッセージ

main.cpp:249:9: 警告: #pragma once がメインファイルにあります
  249 | #pragma once
      |         ^~~~

ソースコード

raw source code

#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <chrono>
#include <cmath>
#include <complex>
#include <deque>
#include <forward_list>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iostream>
#include <limits>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <tuple>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
using lint = long long;
using pint = pair<int, int>;
using plint = pair<lint, lint>;
struct fast_ios { fast_ios(){ cin.tie(nullptr), ios::sync_with_stdio(false), cout << fixed << setprecision(20); }; } fast_ios_;
#define ALL(x) (x).begin(), (x).end()
#define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++)
#define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--)
#define REP(i, n) FOR(i,0,n)
#define IREP(i, n) IFOR(i,0,n)
template <typename T, typename V>
void ndarray(vector<T>& vec, const V& val, int len) { vec.assign(len, val); }
template <typename T, typename V, typename... Args> void ndarray(vector<T>& vec, const V& val, int len, Args... args) { vec.resize(len), for_each(begin(vec), end(vec), [&](T& v) { ndarray(v, val, args...); }); }
template <typename T> bool chmax(T &m, const T q) { return m < q ? (m = q, true) : false; }
template <typename T> bool chmin(T &m, const T q) { return m > q ? (m = q, true) : false; }
int floor_lg(long long x) { return x <= 0 ? -1 : 63 - __builtin_clzll(x); }
template <typename T1, typename T2> pair<T1, T2> operator+(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first + r.first, l.second + r.second); }
template <typename T1, typename T2> pair<T1, T2> operator-(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first - r.first, l.second - r.second); }
template <typename T> vector<T> sort_unique(vector<T> vec) { sort(vec.begin(), vec.end()), vec.erase(unique(vec.begin(), vec.end()), vec.end()); return vec; }
template <typename T> int arglb(const std::vector<T> &v, const T &x) { return std::distance(v.begin(), std::lower_bound(v.begin(), v.end(), x)); }
template <typename T> int argub(const std::vector<T> &v, const T &x) { return std::distance(v.begin(), std::upper_bound(v.begin(), v.end(), x)); }
template <typename T> istream &operator>>(istream &is, vector<T> &vec) { for (auto &v : vec) is >> v; return is; }
template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec) { os << '['; for (auto v : vec) os << v << ','; os << ']'; return os; }
template <typename T, size_t sz> ostream &operator<<(ostream &os, const array<T, sz> &arr) { os << '['; for (auto v : arr) os << v << ','; os << ']'; return os; }
#if __cplusplus >= 201703L
template <typename... T> istream &operator>>(istream &is, tuple<T...> &tpl) { std::apply([&is](auto &&... args) { ((is >> args), ...);}, tpl); return is; }
template <typename... T> ostream &operator<<(ostream &os, const tuple<T...> &tpl) { os << '('; std::apply([&os](auto &&... args) { ((os << args << ','), ...);}, tpl); return os << ')'; }
#endif
template <typename T> ostream &operator<<(ostream &os, const deque<T> &vec) { os << "deq["; for (auto v : vec) os << v << ','; os << ']'; return os; }
template <typename T> ostream &operator<<(ostream &os, const set<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T, typename TH> ostream &operator<<(ostream &os, const unordered_set<T, TH> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T> ostream &operator<<(ostream &os, const multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T> ostream &operator<<(ostream &os, const unordered_multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa) { os << '(' << pa.first << ',' << pa.second << ')'; return os; }
template <typename TK, typename TV> ostream &operator<<(ostream &os, const map<TK, TV> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; }
template <typename TK, typename TV, typename TH> ostream &operator<<(ostream &os, const unordered_map<TK, TV, TH> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; }
#ifdef HITONANODE_LOCAL
const string COLOR_RESET = "\033[0m", BRIGHT_GREEN = "\033[1;32m", BRIGHT_RED = "\033[1;31m", BRIGHT_CYAN = "\033[1;36m", NORMAL_CROSSED = "\033[0;9;37m", RED_BACKGROUND = "\033[1;41m", NORMAL_FAINT = "\033[0;2m";
#define dbg(x) cerr << BRIGHT_CYAN << #x << COLOR_RESET << " = " << (x) << NORMAL_FAINT << " (L" << __LINE__ << ") " << __FILE__ << COLOR_RESET << endl
#define dbgif(cond, x) ((cond) ? cerr << BRIGHT_CYAN << #x << COLOR_RESET << " = " << (x) << NORMAL_FAINT << " (L" << __LINE__ << ") " << __FILE__ << COLOR_RESET << endl : cerr)
#else
#define dbg(x) (x)
#define dbgif(cond, x) 0
#endif


plint rdpl() {
    lint a, b;
    cin >> a >> b;
    return {a, b};
}

using Tri = pair<plint, lint>;
Tri read_tri() {
    plint A = rdpl();
    plint B = rdpl();
    plint C = rdpl();

    auto d1 = B - A, d2 = C - A;
    const lint S = abs(d1.first * d2.second - d2.first * d1.second);
    const lint lo = min({A.first, B.first, C.first}), hi = max({A.first, B.first, C.first});
    return {{lo, hi}, S};
}

#ifndef ATCODER_INTERNAL_BITOP_HPP
#define ATCODER_INTERNAL_BITOP_HPP 1

#ifdef _MSC_VER
#include <intrin.h>
#endif

namespace atcoder {

namespace internal {

// @param n `0 <= n`
// @return minimum non-negative `x` s.t. `n <= 2**x`
int ceil_pow2(int n) {
    int x = 0;
    while ((1U << x) < (unsigned int)(n)) x++;
    return x;
}

// @param n `1 <= n`
// @return minimum non-negative `x` s.t. `(n & (1 << x)) != 0`
int bsf(unsigned int n) {
#ifdef _MSC_VER
    unsigned long index;
    _BitScanForward(&index, n);
    return index;
#else
    return __builtin_ctz(n);
#endif
}

} // namespace internal

} // namespace atcoder

#endif // ATCODER_INTERNAL_BITOP_HPP

#ifndef ATCODER_SEGTREE_HPP
#define ATCODER_SEGTREE_HPP 1

#include <algorithm>
#include <cassert>
#include <vector>

// #include "atcoder/internal_bit"

namespace atcoder {

template <class S, S (*op)(S, S), S (*e)()> struct segtree {
public:
    segtree() : segtree(0) {}
    explicit segtree(int n) : segtree(std::vector<S>(n, e())) {}
    explicit segtree(const std::vector<S>& v) : _n(int(v.size())) {
        log = internal::ceil_pow2(_n);
        size = 1 << log;
        d = std::vector<S>(2 * size, e());
        for (int i = 0; i < _n; i++) d[size + i] = v[i];
        for (int i = size - 1; i >= 1; i--) { update(i); }
    }

    void set(int p, S x) {
        assert(0 <= p && p < _n);
        p += size;
        d[p] = x;
        for (int i = 1; i <= log; i++) update(p >> i);
    }

    S get(int p) const {
        assert(0 <= p && p < _n);
        return d[p + size];
    }

    S prod(int l, int r) const {
        assert(0 <= l && l <= r && r <= _n);
        S sml = e(), smr = e();
        l += size;
        r += size;

        while (l < r) {
            if (l & 1) sml = op(sml, d[l++]);
            if (r & 1) smr = op(d[--r], smr);
            l >>= 1;
            r >>= 1;
        }
        return op(sml, smr);
    }

    S all_prod() const { return d[1]; }

    template <bool (*f)(S)> int max_right(int l) const {
        return max_right(l, [](S x) { return f(x); });
    }
    template <class F> int max_right(int l, F f) const {
        assert(0 <= l && l <= _n);
        assert(f(e()));
        if (l == _n) return _n;
        l += size;
        S sm = e();
        do {
            while (l % 2 == 0) l >>= 1;
            if (!f(op(sm, d[l]))) {
                while (l < size) {
                    l = (2 * l);
                    if (f(op(sm, d[l]))) {
                        sm = op(sm, d[l]);
                        l++;
                    }
                }
                return l - size;
            }
            sm = op(sm, d[l]);
            l++;
        } while ((l & -l) != l);
        return _n;
    }

    template <bool (*f)(S)> int min_left(int r) const {
        return min_left(r, [](S x) { return f(x); });
    }
    template <class F> int min_left(int r, F f) const {
        assert(0 <= r && r <= _n);
        assert(f(e()));
        if (r == 0) return 0;
        r += size;
        S sm = e();
        do {
            r--;
            while (r > 1 && (r % 2)) r >>= 1;
            if (!f(op(d[r], sm))) {
                while (r < size) {
                    r = (2 * r + 1);
                    if (f(op(d[r], sm))) {
                        sm = op(d[r], sm);
                        r--;
                    }
                }
                return r + 1 - size;
            }
            sm = op(d[r], sm);
        } while ((r & -r) != r);
        return 0;
    }

private:
    int _n, size, log;
    std::vector<S> d;

    void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); }
};

} // namespace atcoder

#endif // ATCODER_SEGTREE_HPP

#pragma once
#include <algorithm>
#include <cassert>
#include <utility>
#include <vector>

// CUT begin
// 領域木
template <class S, S (*op)(S, S), S (*e)(), class Coordinate> class rangetree {
    int n;
    std::vector<std::pair<Coordinate, Coordinate>> _pts;
    std::vector<std::vector<Coordinate>> _range2ys;
    std::vector<atcoder::segtree<S, op, e>> segtrees;
    void _add_singlenode(int v, Coordinate y, S val) {
        auto i = std::distance(_range2ys[v].begin(), std::lower_bound(_range2ys[v].begin(), _range2ys[v].end(), y));
        segtrees[v].set(i, op(segtrees[v].get(i), val));
    }
    S _get_singlenode(int v, Coordinate yl, Coordinate yr) const {
        auto il = std::distance(_range2ys[v].begin(), std::lower_bound(_range2ys[v].begin(), _range2ys[v].end(), yl));
        auto ir = std::distance(_range2ys[v].begin(), std::lower_bound(_range2ys[v].begin(), _range2ys[v].end(), yr));
        return segtrees[v].prod(il, ir);
    }

public:
    rangetree() = default;
    void add_point(Coordinate x, Coordinate y) noexcept { _pts.emplace_back(x, y); }
    void build() {
        std::sort(_pts.begin(), _pts.end());
        _pts.erase(std::unique(_pts.begin(), _pts.end()), _pts.end());
        n = _pts.size();

        _range2ys.resize(n * 2);
        for (int i = 0; i < n; i++) _range2ys[n + i] = {_pts[i].second};
        for (int i = n - 1; i > 0; i--) {
            auto &lch = _range2ys[i * 2];
            auto &rch = _range2ys[i * 2 + 1];
            std::merge(lch.begin(), lch.end(), rch.begin(), rch.end(), std::back_inserter(_range2ys[i]));
            _range2ys[i].erase(std::unique(_range2ys[i].begin(), _range2ys[i].end()), _range2ys[i].end());
        }
        for (const auto &v : _range2ys) segtrees.emplace_back(v.size());
    }
    void add(Coordinate x, Coordinate y, S val) {
        int i = std::distance(_pts.begin(), std::lower_bound(_pts.begin(), _pts.end(), std::make_pair(x, y)));
        assert(i < n and _pts[i] == std::make_pair(x, y));
        for (i += n; i; i >>= 1) _add_singlenode(i, y, val);
    }
    S sum(Coordinate xl, Coordinate xr, Coordinate yl, Coordinate yr) const {
        auto compx = [](std::pair<Coordinate, Coordinate> l, std::pair<Coordinate, Coordinate> r) { return l.first < r.first; };
        int l = n + std::distance(_pts.begin(), std::lower_bound(_pts.begin(), _pts.end(), std::make_pair(xl, yr), compx));
        int r = n + std::distance(_pts.begin(), std::lower_bound(_pts.begin(), _pts.end(), std::make_pair(xr, yr), compx));
        S ret = e();
        while (l < r) {
            if (l & 1) ret = op(ret, _get_singlenode(l++, yl, yr));
            if (r & 1) ret = op(ret, _get_singlenode(--r, yl, yr));
            l >>= 1, r >>= 1;
        }
        return ret;
    }
};


lint op(lint l, lint r) { return max(l, r); }

lint e() { return -1; }
// Reference: https://atcoder.github.io/ac-library/document_ja/segtree.html


std::vector<int> segtree_range_covering_nodes(int N, int l, int r) {
    std::vector<int> ret, ret_rev;
    l += N, r += N;
    while (l < r) {
        if (l & 1) ret.push_back(l++);
        if (r & 1) ret_rev.push_back(--r);
        l >>= 1, r >>= 1;
    }
    std::reverse(ret_rev.begin(), ret_rev.end());
    ret.insert(ret.end(), ret_rev.begin(), ret_rev.end());
    return ret;
}

int main() {
    int N, Q;
    cin >> N >> Q;
    vector<Tri> tris(N);
    for (auto &x : tris) x = read_tri();

    vector<int> TP(Q);
    vector<Tri> tris_add(Q);
    vector<plint> qs(Q);
    REP(q, Q) {
        int tp;
        cin >> tp;
        TP[q] = tp;
        if (tp == 1) tris_add[q] = read_tri();
        else {
            int l, r;
            cin >> l >> r;
            qs[q] = {l, r};
        }
    }
    rangetree<lint, op, e, int> tree;

    vector<int> xs;
    for (auto triv : {tris, tris_add}) {
        for (auto [lh, S] : triv) {
            auto [l, h] = lh;
            xs.push_back(l), xs.push_back(h + 1);
        }
    }

    xs = sort_unique(xs);
    const int K = xs.size();
    vector<vector<int>> x2y(K * 2);

    for (const auto trivec : {tris, tris_add}) {
        for (const auto [lh, S] : trivec) {
            const auto [l, h] = lh;
            tree.add_point(l, h);
            int i = arglb(xs, int(l)) + K;
            while (i) {
                x2y[i].push_back(h);
                i /= 2;
            }
        }
    }
    tree.build();

    for (auto &v : x2y) v = sort_unique(v);

    using Tree = atcoder::segtree<lint, op, e>;
    vector<Tree> trees;
    for (auto v : x2y) trees.push_back(Tree(v.size()));

    auto add_tri = [&](Tri tri) {
        const auto [lr, S] = tri;
        const auto [l, r] = lr;
        tree.add(l, r, S);
        int k = arglb<int>(xs, l) + K;
        while (k) {
            auto x = arglb(x2y[k], int(r));
            trees[k].set(x, S);
            k /= 2;
        }
    };

    for (auto tri : tris) add_tri(tri);

    REP(q, Q) {
        if (TP[q] == 1) {
            add_tri(tris_add[q]);
        } else {
            auto [l, r] = qs[q];
            cout << tree.sum(l, r + 1, l, r + 1) << '\n';
            // int i = arglb<int>(xs, l);
            // int j = arglb<int>(xs, r + 1);
            // lint ret = -1;
            // for (auto k : segtree_range_covering_nodes(K, i, j)) {
            //     int rr = argub(x2y[k], int(r));
            //     chmax(ret, trees[k].prod(0, rr));
            // }
            // cout << ret << '\n';
        }
    }
}

yukicoder

結果

テストケース

コンパイルメッセージ

ソースコード