oj.uz

Submission #958240

# Submission time Handle Problem Language Result Execution time Memory
958240 2024-04-05T08:23:29 Z I_am_Polish_Girl Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++14
0 / 100
 1957 ms 91460 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <stack>
#include <queue>
#include <cmath>
#include <random>
#include <chrono>

using namespace std;

#define int long long

int log_ = 10;
int inf = 1000000000000000000;
int mod = 998244353;

struct segment_tree
{
    vector <int> mx;
    vector <int> mn;

    vector <int> mx_d;

    int s;
    void init(int n)
    {
        s = 1;

        while (s < n)
            s *= 2;

        mx.resize(2 * s);
        mn.resize(2 * s);
        mx_d.resize(2 * s);
    }

    void build(int ind, int l, int r, vector <int>& a)
    {
        if (r - l == 1)
        {
            if (l < a.size())
            {
                mx[ind] = a[l];
                mn[ind] = a[l];
                mx_d[ind] = a[l];
                return;
            }

            mx[ind] = 0;
            mn[ind] = 0;
            mx_d[ind] = 0;
            return;
        }


        int m = (l + r) / 2;

        build(ind * 2 + 1, l, m, a);
        build(ind * 2 + 2, m, r, a);

        mx_d[ind] = max(mx_d[ind * 2 + 1], mx_d[ind * 2 + 2]);

        mx_d[ind] = max(mx_d[ind], max(0ll, mx[ind * 2 + 1] - mn[ind * 2 + 2]));
    }

    void build(vector <int>& a)
    {
        build(0, 0, s, a);
    }

    pair <pair <int, int>, int> get(int ind, int  l, int r, int lx, int rx)
    {
        if ((lx <= l) and (r <= rx))
        {
            return { {mx[ind] , mn[ind]} , mx_d[ind] };
        }

        if ((r <= lx) or (rx <= l))
        {
            return { {-1 , -1} , -1 };
        }

        int m = (l + r) / 2;

        pair <pair <int, int>, int> g1 = get(ind * 2 + 1, l, m, lx, rx);
        pair <pair <int, int>, int> g2 = get(ind * 2 + 2, m, r, lx, rx);

        if (g1.second == -1)
            return g2;

        if (g2.second == -1)
            return g1;


        pair <pair <int, int>, int> g;

        g.first.first = max(g1.first.first, g2.first.first);
        g.first.second = max(g1.first.second, g2.first.second);

        g.second = max(g1.second, g2.second);

        g.second = max(g.second, max(0ll, g1.first.first - g2.first.second));

        return g;
    }

    int get(int l, int r)
    {
        pair <pair <int, int>, int> g = get(0, 0, s, l, r);

        return g.second;
    }
};


signed main()
{
    ios_base::sync_with_stdio();
    cin.tie(0);
    cout.tie(0);


    int n, m;
    cin >> n >> m;
    segment_tree st;

    vector <int> a(n);

    for (int i = 0; i < n; i++)
        cin >> a[i];


    st.init(n);

    st.build(a);

    for (int i = 0; i < m; i++)
    {
        int l, r , k;
        cin >> l >> r >> k;
        l--;

        int q = st.get(l, r);


        if (q <= k)
            cout << 1 << "\n";
        else
            cout << 0 << "\n";
    }
}

Compilation message

sortbooks.cpp: In member function 'void segment_tree::build(long long int, long long int, long long int, std::vector<long long int>&)':
sortbooks.cpp:46:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |             if (l < a.size())
      |                 ~~^~~~~~~~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 1 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 1 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1957 ms 91460 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 130 ms 9508 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 1 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 1 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -