oj.uz

Submission #826014

# Submission time Handle Problem Language Result Execution time Memory
826014 2023-08-15T09:52:18 Z borisAngelov Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
100 / 100
 1500 ms 104928 KB 
#include <bits/stdc++.h>

using namespace std;

const int maxn = 1000005;

int n, q;

int a[maxn];

struct query
{
    int l;
    int k;
    int idx;

    query()
    {

    }

    query(int _l, int _k, int _idx)
    {
        l = _l;
        k = _k;
        idx = _idx;
    }
};

vector<query> queries[maxn];
int answers[maxn];

struct segment_tree
{
    struct state
    {
        int maxv;
        int lazy;
    };

    state tree[4 * maxn];

    void push_lazy(int node, int l, int r)
    {
        if (tree[node].lazy == 0)
        {
            return;
        }

        tree[node].maxv = max(tree[node].maxv, tree[node].lazy);

        if (l != r)
        {
            tree[2 * node].lazy = max(tree[2 * node].lazy, tree[node].lazy);
            tree[2 * node + 1].lazy = max(tree[2 * node + 1].lazy, tree[node].lazy);
        }

        tree[node].lazy = 0;
    }

    void update(int node, int l, int r, int ql, int qr, int val)
    {
        push_lazy(node, l, r);

        if (l > qr || r < ql)
        {
            return;
        }

        if (ql <= l && r <= qr)
        {
            tree[node].lazy = max(tree[node].lazy, val);
            push_lazy(node, l, r);
            return;
        }

        int mid = (l + r) / 2;

        update(2 * node, l, mid, ql, qr, val);
        update(2 * node + 1, mid + 1, r, ql, qr, val);

        tree[node].maxv = max(tree[2 * node].maxv, tree[2 * node + 1].maxv);
    }

    int query(int node, int l, int r, int ql, int qr)
    {
        push_lazy(node, l, r);

        if (l > qr || r < ql)
        {
            return 0;
        }

        if (ql <= l && r <= qr)
        {
            return tree[node].maxv;
        }

        int mid = (l + r) / 2;

        return max(query(2 * node, l, mid, ql, qr), query(2 * node + 1, mid + 1, r, ql, qr));
    }

    void update(int l, int r, int val)
    {
        update(1, 1, n, l, r, val);
    }

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

segment_tree tree;

void fastIO()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

int main()
{
    fastIO();

    cin >> n >> q;

    for (int i = 1; i <= n; ++i)
    {
        cin >> a[i];
    }

    for (int i = 1; i <= q; ++i)
    {
        int l, r, k;
        cin >> l >> r >> k;
        queries[r].push_back(query(l, k, i));
    }

    stack<int> st;

    for (int i = 1; i <= n; ++i)
    {
        while (!st.empty() && a[st.top()] <= a[i])
        {
            st.pop();
        }

        if (!st.empty())
        {
            tree.update(1, st.top(), a[i] + a[st.top()]);
        }

        for (int j = 0; j < queries[i].size(); ++j)
        {
            int l = queries[i][j].l;
            int idx = queries[i][j].idx;

            if (tree.query(l, i) <= queries[i][j].k)
            {
                answers[idx] = 1;
            }
            else
            {
                answers[idx] = 0;
            }
        }

        st.push(i);
    }

    for (int i = 1; i <= q; ++i)
    {
        cout << answers[i] << "\n";
    }

    return 0;
}

Compilation message

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:156:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  156 |         for (int j = 0; j < queries[i].size(); ++j)
      |                         ~~^~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23716 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23792 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 12 ms 23780 KB Output is correct
7 Correct 12 ms 23812 KB Output is correct
8 Correct 12 ms 23764 KB Output is correct
9 Correct 12 ms 23816 KB Output is correct
10 Correct 12 ms 23820 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23716 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23792 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 12 ms 23780 KB Output is correct
7 Correct 12 ms 23812 KB Output is correct
8 Correct 12 ms 23764 KB Output is correct
9 Correct 12 ms 23816 KB Output is correct
10 Correct 12 ms 23820 KB Output is correct
11 Correct 13 ms 23952 KB Output is correct
12 Correct 14 ms 24084 KB Output is correct
13 Correct 14 ms 24168 KB Output is correct
14 Correct 17 ms 24172 KB Output is correct
15 Correct 16 ms 24212 KB Output is correct
16 Correct 15 ms 24148 KB Output is correct
17 Correct 15 ms 24060 KB Output is correct
18 Correct 14 ms 24152 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1241 ms 71688 KB Output is correct
2 Correct 1356 ms 72144 KB Output is correct
3 Correct 1278 ms 72180 KB Output is correct
4 Correct 1333 ms 72196 KB Output is correct
5 Correct 956 ms 88340 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 28872 KB Output is correct
2 Correct 103 ms 30604 KB Output is correct
3 Correct 70 ms 28820 KB Output is correct
4 Correct 76 ms 28800 KB Output is correct
5 Correct 74 ms 28848 KB Output is correct
6 Correct 59 ms 28324 KB Output is correct
7 Correct 59 ms 28372 KB Output is correct
8 Correct 79 ms 29820 KB Output is correct
9 Correct 38 ms 27224 KB Output is correct
10 Correct 73 ms 30296 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23716 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23792 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 12 ms 23780 KB Output is correct
7 Correct 12 ms 23812 KB Output is correct
8 Correct 12 ms 23764 KB Output is correct
9 Correct 12 ms 23816 KB Output is correct
10 Correct 12 ms 23820 KB Output is correct
11 Correct 13 ms 23952 KB Output is correct
12 Correct 14 ms 24084 KB Output is correct
13 Correct 14 ms 24168 KB Output is correct
14 Correct 17 ms 24172 KB Output is correct
15 Correct 16 ms 24212 KB Output is correct
16 Correct 15 ms 24148 KB Output is correct
17 Correct 15 ms 24060 KB Output is correct
18 Correct 14 ms 24152 KB Output is correct
19 Correct 200 ms 40680 KB Output is correct
20 Correct 207 ms 40612 KB Output is correct
21 Correct 185 ms 39996 KB Output is correct
22 Correct 178 ms 39980 KB Output is correct
23 Correct 175 ms 39988 KB Output is correct
24 Correct 129 ms 35848 KB Output is correct
25 Correct 149 ms 35824 KB Output is correct
26 Correct 146 ms 36088 KB Output is correct
27 Correct 142 ms 36140 KB Output is correct
28 Correct 141 ms 36196 KB Output is correct
29 Correct 162 ms 36620 KB Output is correct
30 Correct 146 ms 36556 KB Output is correct
31 Correct 154 ms 36580 KB Output is correct
32 Correct 167 ms 36592 KB Output is correct
33 Correct 148 ms 36472 KB Output is correct
34 Correct 117 ms 35428 KB Output is correct
35 Correct 124 ms 35312 KB Output is correct
36 Correct 116 ms 35148 KB Output is correct
37 Correct 116 ms 35204 KB Output is correct
38 Correct 122 ms 35404 KB Output is correct
39 Correct 152 ms 37508 KB Output is correct
40 Correct 104 ms 34548 KB Output is correct
41 Correct 185 ms 37572 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23716 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23792 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 12 ms 23780 KB Output is correct
7 Correct 12 ms 23812 KB Output is correct
8 Correct 12 ms 23764 KB Output is correct
9 Correct 12 ms 23816 KB Output is correct
10 Correct 12 ms 23820 KB Output is correct
11 Correct 13 ms 23952 KB Output is correct
12 Correct 14 ms 24084 KB Output is correct
13 Correct 14 ms 24168 KB Output is correct
14 Correct 17 ms 24172 KB Output is correct
15 Correct 16 ms 24212 KB Output is correct
16 Correct 15 ms 24148 KB Output is correct
17 Correct 15 ms 24060 KB Output is correct
18 Correct 14 ms 24152 KB Output is correct
19 Correct 1241 ms 71688 KB Output is correct
20 Correct 1356 ms 72144 KB Output is correct
21 Correct 1278 ms 72180 KB Output is correct
22 Correct 1333 ms 72196 KB Output is correct
23 Correct 956 ms 88340 KB Output is correct
24 Correct 93 ms 28872 KB Output is correct
25 Correct 103 ms 30604 KB Output is correct
26 Correct 70 ms 28820 KB Output is correct
27 Correct 76 ms 28800 KB Output is correct
28 Correct 74 ms 28848 KB Output is correct
29 Correct 59 ms 28324 KB Output is correct
30 Correct 59 ms 28372 KB Output is correct
31 Correct 79 ms 29820 KB Output is correct
32 Correct 38 ms 27224 KB Output is correct
33 Correct 73 ms 30296 KB Output is correct
34 Correct 200 ms 40680 KB Output is correct
35 Correct 207 ms 40612 KB Output is correct
36 Correct 185 ms 39996 KB Output is correct
37 Correct 178 ms 39980 KB Output is correct
38 Correct 175 ms 39988 KB Output is correct
39 Correct 129 ms 35848 KB Output is correct
40 Correct 149 ms 35824 KB Output is correct
41 Correct 146 ms 36088 KB Output is correct
42 Correct 142 ms 36140 KB Output is correct
43 Correct 141 ms 36196 KB Output is correct
44 Correct 162 ms 36620 KB Output is correct
45 Correct 146 ms 36556 KB Output is correct
46 Correct 154 ms 36580 KB Output is correct
47 Correct 167 ms 36592 KB Output is correct
48 Correct 148 ms 36472 KB Output is correct
49 Correct 117 ms 35428 KB Output is correct
50 Correct 124 ms 35312 KB Output is correct
51 Correct 116 ms 35148 KB Output is correct
52 Correct 116 ms 35204 KB Output is correct
53 Correct 122 ms 35404 KB Output is correct
54 Correct 152 ms 37508 KB Output is correct
55 Correct 104 ms 34548 KB Output is correct
56 Correct 185 ms 37572 KB Output is correct
57 Correct 1324 ms 104928 KB Output is correct
58 Correct 1317 ms 104908 KB Output is correct
59 Correct 1287 ms 103240 KB Output is correct
60 Correct 1500 ms 103152 KB Output is correct
61 Correct 1325 ms 103156 KB Output is correct
62 Correct 1236 ms 103324 KB Output is correct
63 Correct 618 ms 83600 KB Output is correct
64 Correct 633 ms 83552 KB Output is correct
65 Correct 902 ms 86740 KB Output is correct
66 Correct 882 ms 86628 KB Output is correct
67 Correct 895 ms 86664 KB Output is correct
68 Correct 947 ms 88384 KB Output is correct
69 Correct 933 ms 88448 KB Output is correct
70 Correct 957 ms 87984 KB Output is correct
71 Correct 941 ms 87984 KB Output is correct
72 Correct 934 ms 87968 KB Output is correct
73 Correct 579 ms 79468 KB Output is correct
74 Correct 575 ms 80484 KB Output is correct
75 Correct 582 ms 79536 KB Output is correct
76 Correct 573 ms 79804 KB Output is correct
77 Correct 568 ms 79272 KB Output is correct
78 Correct 951 ms 91408 KB Output is correct
79 Correct 618 ms 75756 KB Output is correct
80 Correct 978 ms 90496 KB Output is correct