oj.uz

Submission #373180

# Submission time Handle Problem Language Result Execution time Memory
373180 2021-03-03T15:53:57 Z arujbansal Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
100 / 100
 1936 ms 108940 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
#include <set>
#include <array>
#include <stack>
#include <queue>
#include <random>
#include <numeric>
#include <functional>
#include <chrono>
#include <utility>
#include <iomanip>
#include <assert.h>

using namespace std;

void dbg_out() { cerr << endl; }
template<typename Head, typename... Tail>
void dbg_out(Head H, Tail... T) { cerr << ' ' << H; dbg_out(T...); }
#define dbg(...) cerr << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)

#define rng_init mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define rng_seed(x) mt19937 rng(x)
#define all(x) (x).begin(), (x).end()
#define sz(x) (int) (x).size()
#define int long long

template<typename T>
struct segment_tree {
    int n;
    vector<T> a, tree;
    T identity;
    function<T(const T&, const T&)> merge;

    void init(const vector<T> &a, T identity, const function<T(const T&, const T&)> &merge) {
        n = (int) a.size();
        tree.resize(4 * n);

        this->a = a;
        this->identity = identity;
        this->merge = merge;

        build(1, 0, n - 1);
    }

    void init(int n, T identity, const function<T(const T&, const T&)> &merge) {
        this->n = n;
        this->identity = identity;
        this->merge = merge;

        tree.assign(4 * n, identity);
    }

    void build(int i, int l, int r) {
        if (l == r) {
            tree[i] = a[l];
            return;
        }

        int mid = (l + r) / 2;
        build(2 * i, l, mid);
        build(2 * i + 1, mid + 1, r);

        tree[i] = merge(tree[2 * i], tree[2 * i + 1]);
    }

    void identity_modify(int i, int l, int r, int pos, T val) {
        if (l == r) {
            tree[i] = merge(tree[i], val);
            return;
        }

        int mid = (l + r) / 2;
        if (pos <= mid) identity_modify(2 * i, l, mid, pos, val);
        else identity_modify(2 * i + 1, mid + 1, r, pos, val);

        tree[i] = merge(tree[2 * i], tree[2 * i + 1]);
    }

    void increment(int i, int l, int r, int pos, T val) {
        if (l == r) {
            tree[i] += val;
            return;
        }

        int mid = (l + r) / 2;
        if (pos <= mid) increment(2 * i, l, mid, pos, val);
        else increment(2 * i + 1, mid + 1, r, pos, val);

        tree[i] = merge(tree[2 * i], tree[2 * i + 1]);
    }

    T query(int i, int l, int r, int ql, int qr) {
        if (l > qr || r < ql) return identity;
        if (l >= ql && r <= qr) return tree[i];

        int mid = (l + r) / 2;
        T resL = query(2 * i, l, mid, ql, qr);
        T resR = query(2 * i + 1, mid + 1, r, ql, qr);

        return merge(resL, resR);
    }

    void identity_modify(int pos, T val) { identity_modify(1, 0, n - 1, pos, val); }

    void increment(int pos, T val) { increment(1, 0, n - 1, pos, val); }

    T query(int pos) { return query(1, 0, n - 1, pos, pos); }

    T query(int l, int r) { return query(1, 0, n - 1, l, r); }
};

const int MXN = 1e5 + 5, INF = 1e17;

void solve() {
    int N, M;
    cin >> N >> M;

    vector<int> A(N);
    for (auto &x : A)
        cin >> x;

    vector<array<int, 3>> queries[N];
    for (int i = 0; i < M; i++) {
        int l, r, k;
        cin >> l >> r >> k;
        l--, r--;

        queries[r].emplace_back(array<int, 3>{l, k, i});
    }

    stack<int> greater;
    segment_tree<int> tree;
    tree.init(N, -INF, [&](const int &x, const int &y) { return max(x, y); });

    vector<int> ans(M, 0);

    for (int r = 0; r < N; r++) {
        while (!greater.empty() && A[greater.top()] <= A[r])
            greater.pop();

        if (!greater.empty()) {
            int greater_idx = greater.top();
            tree.identity_modify(greater_idx, A[greater_idx] + A[r]);
        }

        for (const auto &[l, k, idx] : queries[r])
            ans[idx] |= (tree.query(l, r) <= k);

        greater.push(r);
    }

    for (const auto &x : ans)
        cout << x << "\n";
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int TC = 1;
    // cin >> TC;
    while (TC--) solve();
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 4 ms 620 KB Output is correct
12 Correct 4 ms 876 KB Output is correct
13 Correct 5 ms 876 KB Output is correct
14 Correct 6 ms 1004 KB Output is correct
15 Correct 9 ms 1004 KB Output is correct
16 Correct 5 ms 1152 KB Output is correct
17 Correct 4 ms 876 KB Output is correct
18 Correct 5 ms 876 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1932 ms 105376 KB Output is correct
2 Correct 1936 ms 105580 KB Output is correct
3 Correct 1910 ms 105320 KB Output is correct
4 Correct 1898 ms 105488 KB Output is correct
5 Correct 1564 ms 105528 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 130 ms 10860 KB Output is correct
2 Correct 116 ms 11372 KB Output is correct
3 Correct 104 ms 11116 KB Output is correct
4 Correct 103 ms 11116 KB Output is correct
5 Correct 103 ms 11116 KB Output is correct
6 Correct 87 ms 11136 KB Output is correct
7 Correct 83 ms 11244 KB Output is correct
8 Correct 101 ms 10996 KB Output is correct
9 Correct 45 ms 4512 KB Output is correct
10 Correct 102 ms 10784 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 4 ms 620 KB Output is correct
12 Correct 4 ms 876 KB Output is correct
13 Correct 5 ms 876 KB Output is correct
14 Correct 6 ms 1004 KB Output is correct
15 Correct 9 ms 1004 KB Output is correct
16 Correct 5 ms 1152 KB Output is correct
17 Correct 4 ms 876 KB Output is correct
18 Correct 5 ms 876 KB Output is correct
19 Correct 317 ms 21860 KB Output is correct
20 Correct 312 ms 21868 KB Output is correct
21 Correct 268 ms 22384 KB Output is correct
22 Correct 259 ms 22380 KB Output is correct
23 Correct 260 ms 22380 KB Output is correct
24 Correct 199 ms 22508 KB Output is correct
25 Correct 205 ms 22508 KB Output is correct
26 Correct 236 ms 22260 KB Output is correct
27 Correct 233 ms 22124 KB Output is correct
28 Correct 241 ms 22016 KB Output is correct
29 Correct 257 ms 21868 KB Output is correct
30 Correct 255 ms 21868 KB Output is correct
31 Correct 261 ms 21868 KB Output is correct
32 Correct 258 ms 21868 KB Output is correct
33 Correct 260 ms 22012 KB Output is correct
34 Correct 186 ms 21996 KB Output is correct
35 Correct 191 ms 22124 KB Output is correct
36 Correct 184 ms 21996 KB Output is correct
37 Correct 182 ms 21996 KB Output is correct
38 Correct 185 ms 22124 KB Output is correct
39 Correct 226 ms 21408 KB Output is correct
40 Correct 175 ms 16536 KB Output is correct
41 Correct 237 ms 21148 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 4 ms 620 KB Output is correct
12 Correct 4 ms 876 KB Output is correct
13 Correct 5 ms 876 KB Output is correct
14 Correct 6 ms 1004 KB Output is correct
15 Correct 9 ms 1004 KB Output is correct
16 Correct 5 ms 1152 KB Output is correct
17 Correct 4 ms 876 KB Output is correct
18 Correct 5 ms 876 KB Output is correct
19 Correct 1932 ms 105376 KB Output is correct
20 Correct 1936 ms 105580 KB Output is correct
21 Correct 1910 ms 105320 KB Output is correct
22 Correct 1898 ms 105488 KB Output is correct
23 Correct 1564 ms 105528 KB Output is correct
24 Correct 130 ms 10860 KB Output is correct
25 Correct 116 ms 11372 KB Output is correct
26 Correct 104 ms 11116 KB Output is correct
27 Correct 103 ms 11116 KB Output is correct
28 Correct 103 ms 11116 KB Output is correct
29 Correct 87 ms 11136 KB Output is correct
30 Correct 83 ms 11244 KB Output is correct
31 Correct 101 ms 10996 KB Output is correct
32 Correct 45 ms 4512 KB Output is correct
33 Correct 102 ms 10784 KB Output is correct
34 Correct 317 ms 21860 KB Output is correct
35 Correct 312 ms 21868 KB Output is correct
36 Correct 268 ms 22384 KB Output is correct
37 Correct 259 ms 22380 KB Output is correct
38 Correct 260 ms 22380 KB Output is correct
39 Correct 199 ms 22508 KB Output is correct
40 Correct 205 ms 22508 KB Output is correct
41 Correct 236 ms 22260 KB Output is correct
42 Correct 233 ms 22124 KB Output is correct
43 Correct 241 ms 22016 KB Output is correct
44 Correct 257 ms 21868 KB Output is correct
45 Correct 255 ms 21868 KB Output is correct
46 Correct 261 ms 21868 KB Output is correct
47 Correct 258 ms 21868 KB Output is correct
48 Correct 260 ms 22012 KB Output is correct
49 Correct 186 ms 21996 KB Output is correct
50 Correct 191 ms 22124 KB Output is correct
51 Correct 184 ms 21996 KB Output is correct
52 Correct 182 ms 21996 KB Output is correct
53 Correct 185 ms 22124 KB Output is correct
54 Correct 226 ms 21408 KB Output is correct
55 Correct 175 ms 16536 KB Output is correct
56 Correct 237 ms 21148 KB Output is correct
57 Correct 1883 ms 105952 KB Output is correct
58 Correct 1885 ms 105828 KB Output is correct
59 Correct 1824 ms 106788 KB Output is correct
60 Correct 1817 ms 106860 KB Output is correct
61 Correct 1814 ms 106636 KB Output is correct
62 Correct 1786 ms 106648 KB Output is correct
63 Correct 1097 ms 108780 KB Output is correct
64 Correct 1143 ms 108940 KB Output is correct
65 Correct 1457 ms 107116 KB Output is correct
66 Correct 1488 ms 106904 KB Output is correct
67 Correct 1485 ms 106780 KB Output is correct
68 Correct 1542 ms 106008 KB Output is correct
69 Correct 1530 ms 106092 KB Output is correct
70 Correct 1555 ms 106092 KB Output is correct
71 Correct 1541 ms 105928 KB Output is correct
72 Correct 1533 ms 106092 KB Output is correct
73 Correct 998 ms 104244 KB Output is correct
74 Correct 1024 ms 104172 KB Output is correct
75 Correct 1000 ms 104428 KB Output is correct
76 Correct 994 ms 105068 KB Output is correct
77 Correct 1004 ms 104220 KB Output is correct
78 Correct 1353 ms 103568 KB Output is correct
79 Correct 958 ms 71184 KB Output is correct
80 Correct 1435 ms 103056 KB Output is correct