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답안 #879055

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
879055 2023-11-26T08:11:10 Z The_Samurai Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
100 / 100
 926 ms 141448 KB 
#include "bits/stdc++.h"
using namespace std;
using ll = long long;
const int inf = 1e9;
const int lg = 20;

template<typename T> struct SegTree {
    vector<T> tree;
    int size;
    T neutral_element = -1e9; // sum - 0, mx - (-INF), mn - INF

    void init(int n) {
        size = 1;
        while (size <= n) size *= 2;
        tree.assign(2 * size, neutral_element);
    }

    inline T type(T a, T b) {
        return max(a, b);
    }

    SegTree(int n) {
        init(n);
    }

    SegTree() {}

    void set(int p, int value) {  // set value at position p
        p += size;
        tree[p] = type(value, tree[p]);
        for (; p > 1; p >>= 1) tree[p >> 1] = type(tree[p], tree[p ^ 1]);
    }

    T get(int l, int r) {  // sum on interval [l, r]
        if (l > r) return neutral_element;
        int res = neutral_element;
        for (l += size, r += size + 1; l < r; l >>= 1, r >>= 1) {
            if (l & 1) res = type(res, tree[l++]);
            if (r & 1) res = type(res, tree[--r]);
        }
        return res;
    }
};

void solve() {
    int n, q;
    cin >> n >> q;
    vector<int> a(n + 1), left(n + 1), ans(q);
    stack<int> st;
    vector<vector<int>> vec(n + 1);
    vector<vector<tuple<int, int, int>>> queries(n + 1);
    for (int i = 1; i <= n; i++) cin >> a[i];
    for (int i = 0; i < q; i++) {
        int l, r, k;
        cin >> l >> r >> k;
        queries[l].emplace_back(r, k, i);
    }
    for (int i = 1; i <= n; i++) {
        while (!st.empty() and a[st.top()] <= a[i]) st.pop();
        left[i] = st.empty() ? 0 : st.top();
        vec[left[i]].emplace_back(i);
        st.push(i);
    }
    SegTree<int> sg(n + 1);
    for (int l = n; l > 0; l--) {
        for (int i: vec[l]) sg.set(i, a[i] + a[left[i]]);
        for (auto [r, k, i]: queries[l]) {
            ans[i] = sg.get(l, r) <= k;
        }
    }
    for (int i = 0; i < q; i++) cout << ans[i] << '\n';
}

int main() {
    cin.tie(0)->sync_with_stdio(false);
#ifdef sunnatov
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif

    int queries = 1;
//    cin >> queries;

    for (int test_case = 1; test_case <= queries; test_case++) {
#ifdef sunnatov
        cout << "Test case: " << test_case << endl;
#endif
        solve();
        cout << '\n';
    }
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 2 ms 860 KB Output is correct
14 Correct 4 ms 860 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 2 ms 860 KB Output is correct
17 Correct 2 ms 860 KB Output is correct
18 Correct 2 ms 956 KB Output is correct

Subtask #3
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 869 ms 128812 KB Output is correct
2 Correct 821 ms 140092 KB Output is correct
3 Correct 803 ms 140116 KB Output is correct
4 Correct 817 ms 139948 KB Output is correct
5 Correct 759 ms 127936 KB Output is correct

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 52 ms 11416 KB Output is correct
2 Correct 64 ms 11712 KB Output is correct
3 Correct 49 ms 12088 KB Output is correct
4 Correct 47 ms 12236 KB Output is correct
5 Correct 50 ms 12240 KB Output is correct
6 Correct 38 ms 11472 KB Output is correct
7 Correct 37 ms 11468 KB Output is correct
8 Correct 44 ms 11392 KB Output is correct
9 Correct 24 ms 3912 KB Output is correct
10 Correct 42 ms 11532 KB Output is correct

Subtask #5
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 2 ms 860 KB Output is correct
14 Correct 4 ms 860 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 2 ms 860 KB Output is correct
17 Correct 2 ms 860 KB Output is correct
18 Correct 2 ms 956 KB Output is correct
19 Correct 128 ms 25608 KB Output is correct
20 Correct 153 ms 28944 KB Output is correct
21 Correct 118 ms 27876 KB Output is correct
22 Correct 115 ms 27728 KB Output is correct
23 Correct 114 ms 27728 KB Output is correct
24 Correct 96 ms 25648 KB Output is correct
25 Correct 95 ms 25712 KB Output is correct
26 Correct 107 ms 26052 KB Output is correct
27 Correct 106 ms 26060 KB Output is correct
28 Correct 120 ms 26056 KB Output is correct
29 Correct 126 ms 26572 KB Output is correct
30 Correct 114 ms 26520 KB Output is correct
31 Correct 111 ms 26512 KB Output is correct
32 Correct 117 ms 26568 KB Output is correct
33 Correct 120 ms 26392 KB Output is correct
34 Correct 85 ms 25004 KB Output is correct
35 Correct 88 ms 25296 KB Output is correct
36 Correct 85 ms 24776 KB Output is correct
37 Correct 84 ms 24844 KB Output is correct
38 Correct 85 ms 25028 KB Output is correct
39 Correct 101 ms 24920 KB Output is correct
40 Correct 80 ms 19464 KB Output is correct
41 Correct 105 ms 24056 KB Output is correct

Subtask #6
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 2 ms 860 KB Output is correct
14 Correct 4 ms 860 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 2 ms 860 KB Output is correct
17 Correct 2 ms 860 KB Output is correct
18 Correct 2 ms 956 KB Output is correct
19 Correct 869 ms 128812 KB Output is correct
20 Correct 821 ms 140092 KB Output is correct
21 Correct 803 ms 140116 KB Output is correct
22 Correct 817 ms 139948 KB Output is correct
23 Correct 759 ms 127936 KB Output is correct
24 Correct 52 ms 11416 KB Output is correct
25 Correct 64 ms 11712 KB Output is correct
26 Correct 49 ms 12088 KB Output is correct
27 Correct 47 ms 12236 KB Output is correct
28 Correct 50 ms 12240 KB Output is correct
29 Correct 38 ms 11472 KB Output is correct
30 Correct 37 ms 11468 KB Output is correct
31 Correct 44 ms 11392 KB Output is correct
32 Correct 24 ms 3912 KB Output is correct
33 Correct 42 ms 11532 KB Output is correct
34 Correct 128 ms 25608 KB Output is correct
35 Correct 153 ms 28944 KB Output is correct
36 Correct 118 ms 27876 KB Output is correct
37 Correct 115 ms 27728 KB Output is correct
38 Correct 114 ms 27728 KB Output is correct
39 Correct 96 ms 25648 KB Output is correct
40 Correct 95 ms 25712 KB Output is correct
41 Correct 107 ms 26052 KB Output is correct
42 Correct 106 ms 26060 KB Output is correct
43 Correct 120 ms 26056 KB Output is correct
44 Correct 126 ms 26572 KB Output is correct
45 Correct 114 ms 26520 KB Output is correct
46 Correct 111 ms 26512 KB Output is correct
47 Correct 117 ms 26568 KB Output is correct
48 Correct 120 ms 26392 KB Output is correct
49 Correct 85 ms 25004 KB Output is correct
50 Correct 88 ms 25296 KB Output is correct
51 Correct 85 ms 24776 KB Output is correct
52 Correct 84 ms 24844 KB Output is correct
53 Correct 85 ms 25028 KB Output is correct
54 Correct 101 ms 24920 KB Output is correct
55 Correct 80 ms 19464 KB Output is correct
56 Correct 105 ms 24056 KB Output is correct
57 Correct 838 ms 141364 KB Output is correct
58 Correct 871 ms 141448 KB Output is correct
59 Correct 779 ms 139164 KB Output is correct
60 Correct 758 ms 138776 KB Output is correct
61 Correct 788 ms 138832 KB Output is correct
62 Correct 836 ms 138768 KB Output is correct
63 Correct 459 ms 121492 KB Output is correct
64 Correct 465 ms 121536 KB Output is correct
65 Correct 756 ms 127088 KB Output is correct
66 Correct 761 ms 127164 KB Output is correct
67 Correct 750 ms 127340 KB Output is correct
68 Correct 797 ms 129496 KB Output is correct
69 Correct 926 ms 127028 KB Output is correct
70 Correct 889 ms 128760 KB Output is correct
71 Correct 895 ms 128784 KB Output is correct
72 Correct 867 ms 126060 KB Output is correct
73 Correct 407 ms 118988 KB Output is correct
74 Correct 415 ms 120308 KB Output is correct
75 Correct 406 ms 118956 KB Output is correct
76 Correct 403 ms 118976 KB Output is correct
77 Correct 417 ms 119008 KB Output is correct
78 Correct 601 ms 123592 KB Output is correct
79 Correct 462 ms 86260 KB Output is correct
80 Correct 585 ms 118648 KB Output is correct