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Submission #992796

# Submission time Handle Problem Language Result Execution time Memory
992796 2024-06-05T07:32:45 Z NValchanov Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
100 / 100
 790 ms 60452 KB 
#include <bits/stdc++.h>

#define endl '\n'

using namespace std;

typedef long long ll;

const int MAXN = 1e6 + 10;

struct SegmentTree
{
    int n;
    ll tree[4 * MAXN];
    ll w[MAXN];

    void init(int _n, ll _w[])
    {
        n = _n;
        for(int i = 1; i <= n; i++)
        {
            w[i] = _w[i];
        }
    }

    void update(int left, int right, int idx, int pos, ll val)
    {
        if(pos < left || right < pos)
            return;

        if(left == right)
        {
            tree[idx] = max(tree[idx], val + w[left]);
            return;
        }

        int mid = left + (right - left) / 2;

        update(left, mid, 2 * idx, pos, val);
        update(mid + 1, right, 2 * idx + 1, pos, val);

        tree[idx] = max(tree[2 * idx], tree[2 * idx + 1]);
    } 

    ll query(int left, int right, int idx, int qleft, int qright)
    {
        if(qright < left || right < qleft)
            return 0;

        if(qleft <= left && right <= qright)
            return tree[idx];

        int mid = left + (right - left) / 2;

        ll Lnode = query(left, mid, 2 * idx, qleft, qright);
        ll Rnode = query(mid + 1, right, 2 * idx + 1, qleft, qright);

        return max(Lnode, Rnode);
    }

    void update(int pos, ll val)
    {
        update(1, n, 1, pos, val);
    }

    ll query(int left, int right)
    {
        return query(1, n, 1, left, right);
    }
};

struct qry
{
    int left, right;
    ll k;
    int idx;

    qry()
    {
        left = right = 1;
        k = 0;
        idx = 1;
    }

    qry(int _left, int _right, ll _k, int _idx)
    {
        left = _left;
        right = _right;
        k = _k;
        idx = _idx;
    }

    friend bool operator<(const qry&q1, const qry&q2)
    {
        if(q1.right != q2.right)
            return q1.right < q2.right;

        if(q1.left != q2.left)
            return q1.left < q2.left;

        if(q1.k != q2.k)
            return q1.k < q2.k;
        
        return q1.idx < q2.idx;
    }
};

int n, q;
ll w[MAXN];
bool ans[MAXN];
vector < qry > queries;
SegmentTree t;

void read()
{
    cin >> n >> q;
    for(int i = 1; i <= n; i++)
    {
        cin >> w[i];
    }
    for(int i = 1; i <= q; i++)
    {
        int left, right;
        ll k;
        cin >> left >> right >> k;
        qry cur = qry(left, right, k, i);

        queries.push_back(cur);
    }
}

void solve()
{
    t.init(n, w);
    sort(queries.begin(), queries.end());

    stack < int > st;
    int ptr = 1;

    for(qry c : queries)
    {
        int left = c.left;
        int right = c.right;
        ll k = c.k;
        int idx =  c.idx;

        while(ptr <= right)
        {
            while(!st.empty() && w[st.top()] <= w[ptr])
                st.pop();

            if(!st.empty())
                t.update(st.top(), w[ptr]);

            st.push(ptr);

            ptr++;
        }

        ll cur = t.query(left, right);

        ans[idx] = (cur <= k);
    }
}

void print()
{
    for(int i = 1; i <= q; i++)
    {
        cout << ans[i] << endl;
    }
}

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

    read();
    solve();
    print();

    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6748 KB Output is correct
13 Correct 3 ms 6748 KB Output is correct
14 Correct 3 ms 6880 KB Output is correct
15 Correct 3 ms 6804 KB Output is correct
16 Correct 3 ms 6940 KB Output is correct
17 Correct 3 ms 6784 KB Output is correct
18 Correct 3 ms 6684 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 790 ms 59424 KB Output is correct
2 Correct 732 ms 59296 KB Output is correct
3 Correct 724 ms 59300 KB Output is correct
4 Correct 738 ms 59396 KB Output is correct
5 Correct 624 ms 43428 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 11772 KB Output is correct
2 Correct 59 ms 11328 KB Output is correct
3 Correct 54 ms 9104 KB Output is correct
4 Correct 56 ms 9244 KB Output is correct
5 Correct 54 ms 9144 KB Output is correct
6 Correct 46 ms 9152 KB Output is correct
7 Correct 47 ms 9148 KB Output is correct
8 Correct 51 ms 9588 KB Output is correct
9 Correct 32 ms 9160 KB Output is correct
10 Correct 46 ms 9152 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6748 KB Output is correct
13 Correct 3 ms 6748 KB Output is correct
14 Correct 3 ms 6880 KB Output is correct
15 Correct 3 ms 6804 KB Output is correct
16 Correct 3 ms 6940 KB Output is correct
17 Correct 3 ms 6784 KB Output is correct
18 Correct 3 ms 6684 KB Output is correct
19 Correct 139 ms 18608 KB Output is correct
20 Correct 139 ms 19120 KB Output is correct
21 Correct 128 ms 17840 KB Output is correct
22 Correct 141 ms 17976 KB Output is correct
23 Correct 130 ms 17844 KB Output is correct
24 Correct 115 ms 13764 KB Output is correct
25 Correct 107 ms 14788 KB Output is correct
26 Correct 121 ms 14380 KB Output is correct
27 Correct 121 ms 14256 KB Output is correct
28 Correct 118 ms 14772 KB Output is correct
29 Correct 121 ms 14256 KB Output is correct
30 Correct 118 ms 14532 KB Output is correct
31 Correct 132 ms 14512 KB Output is correct
32 Correct 123 ms 15028 KB Output is correct
33 Correct 125 ms 14256 KB Output is correct
34 Correct 101 ms 14452 KB Output is correct
35 Correct 103 ms 14448 KB Output is correct
36 Correct 101 ms 14284 KB Output is correct
37 Correct 108 ms 14492 KB Output is correct
38 Correct 102 ms 14276 KB Output is correct
39 Correct 110 ms 15936 KB Output is correct
40 Correct 85 ms 12728 KB Output is correct
41 Correct 110 ms 14028 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6748 KB Output is correct
13 Correct 3 ms 6748 KB Output is correct
14 Correct 3 ms 6880 KB Output is correct
15 Correct 3 ms 6804 KB Output is correct
16 Correct 3 ms 6940 KB Output is correct
17 Correct 3 ms 6784 KB Output is correct
18 Correct 3 ms 6684 KB Output is correct
19 Correct 790 ms 59424 KB Output is correct
20 Correct 732 ms 59296 KB Output is correct
21 Correct 724 ms 59300 KB Output is correct
22 Correct 738 ms 59396 KB Output is correct
23 Correct 624 ms 43428 KB Output is correct
24 Correct 61 ms 11772 KB Output is correct
25 Correct 59 ms 11328 KB Output is correct
26 Correct 54 ms 9104 KB Output is correct
27 Correct 56 ms 9244 KB Output is correct
28 Correct 54 ms 9144 KB Output is correct
29 Correct 46 ms 9152 KB Output is correct
30 Correct 47 ms 9148 KB Output is correct
31 Correct 51 ms 9588 KB Output is correct
32 Correct 32 ms 9160 KB Output is correct
33 Correct 46 ms 9152 KB Output is correct
34 Correct 139 ms 18608 KB Output is correct
35 Correct 139 ms 19120 KB Output is correct
36 Correct 128 ms 17840 KB Output is correct
37 Correct 141 ms 17976 KB Output is correct
38 Correct 130 ms 17844 KB Output is correct
39 Correct 115 ms 13764 KB Output is correct
40 Correct 107 ms 14788 KB Output is correct
41 Correct 121 ms 14380 KB Output is correct
42 Correct 121 ms 14256 KB Output is correct
43 Correct 118 ms 14772 KB Output is correct
44 Correct 121 ms 14256 KB Output is correct
45 Correct 118 ms 14532 KB Output is correct
46 Correct 132 ms 14512 KB Output is correct
47 Correct 123 ms 15028 KB Output is correct
48 Correct 125 ms 14256 KB Output is correct
49 Correct 101 ms 14452 KB Output is correct
50 Correct 103 ms 14448 KB Output is correct
51 Correct 101 ms 14284 KB Output is correct
52 Correct 108 ms 14492 KB Output is correct
53 Correct 102 ms 14276 KB Output is correct
54 Correct 110 ms 15936 KB Output is correct
55 Correct 85 ms 12728 KB Output is correct
56 Correct 110 ms 14028 KB Output is correct
57 Correct 719 ms 59808 KB Output is correct
58 Correct 730 ms 60064 KB Output is correct
59 Correct 723 ms 59304 KB Output is correct
60 Correct 720 ms 60452 KB Output is correct
61 Correct 723 ms 59816 KB Output is correct
62 Correct 725 ms 59300 KB Output is correct
63 Correct 581 ms 44160 KB Output is correct
64 Correct 541 ms 43684 KB Output is correct
65 Correct 656 ms 43376 KB Output is correct
66 Correct 601 ms 42920 KB Output is correct
67 Correct 609 ms 43056 KB Output is correct
68 Correct 615 ms 43940 KB Output is correct
69 Correct 625 ms 42916 KB Output is correct
70 Correct 630 ms 43152 KB Output is correct
71 Correct 622 ms 42920 KB Output is correct
72 Correct 609 ms 42988 KB Output is correct
73 Correct 535 ms 43060 KB Output is correct
74 Correct 549 ms 45216 KB Output is correct
75 Correct 555 ms 47012 KB Output is correct
76 Correct 528 ms 47264 KB Output is correct
77 Correct 569 ms 45048 KB Output is correct
78 Correct 571 ms 48548 KB Output is correct
79 Correct 435 ms 40356 KB Output is correct
80 Correct 554 ms 43428 KB Output is correct