Submission #905761

#	Time	Username	Problem	Language	Result	Execution time	Memory
905761		Der_Vlapos	Red-blue table (IZhO19_stones)	C++17	0 / 100	1 ms	356 KiB

stones

// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #include <x86intrin.h>

#include <bits/stdc++.h>
#include <chrono>
#include <random>

// @author: Vlapos

namespace operators
{
    template <typename T1, typename T2>
    std::istream &operator>>(std::istream &in, std::pair<T1, T2> &x)
    {
        in >> x.first >> x.second;
        return in;
    }

    template <typename T1, typename T2>
    std::ostream &operator<<(std::ostream &out, std::pair<T1, T2> x)
    {
        out << x.first << " " << x.second;
        return out;
    }

    template <typename T1>
    std::istream &operator>>(std::istream &in, std::vector<T1> &x)
    {
        for (auto &i : x)
            in >> i;
        return in;
    }

    template <typename T1>
    std::ostream &operator<<(std::ostream &out, std::vector<T1> &x)
    {
        for (auto &i : x)
            out << i << " ";
        return out;
    }

    template <typename T1>
    std::ostream &operator<<(std::ostream &out, std::set<T1> &x)
    {
        for (auto &i : x)
            out << i << " ";
        return out;
    }
}

// name spaces
using namespace std;
using namespace operators;
// end of name spaces

// defines
#define ll long long
#define ull unsigned long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define pll pair<ll, ll>
#define f first
#define s second
#define uint unsigned int
#define all(vc) vc.begin(), vc.end()
// end of defines

// usefull stuff

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

inline int getbit(int &x, int &bt) { return (x >> bt) & 1; }

const int dx4[4] = {-1, 0, 0, 1};
const int dy4[4] = {0, -1, 1, 0};
const int dx8[8] = {-1, -1, -1, 0, 0, 1, 1, 1};
const int dy8[8] = {-1, -0, 1, -1, 1, -1, 0, 1};

const ll INF = (1e18) + 500;
const int BIG = (1e9) * 2 + 100;
const int MAXN = (1e5) + 5;
const int MOD7 = (1e9) + 7;
const int MOD9 = (1e9) + 9;
const uint MODFFT = 998244353;

// #define int ll

struct segTree
{
    vector<int> tree;
    int sz = 0;

    void init(int n)
    {
        sz = n;
        tree.resize(2 * sz, 0);
    }

    void set(int pos, int val)
    {
        pos += sz;
        tree[pos] = max(tree[pos], val);
        pos >>= 1;

        while (pos)
        {
            tree[pos] = max(tree[pos * 2], tree[pos * 2 + 1]);
            pos >>= 1;
        }
    }

    int get(int l, int r)
    {
        l += sz;
        r += sz;
        int res = 0;
        while (l < r)
        {
            if (l & 1)
                res = max(res, tree[l++]);
            if (r & 1)
                res = max(res, tree[--r]);
            l >>= 1;
            r >>= 1;
        }

        return res;
    }
};

struct test
{
    struct query
    {
        int l, k, id;
    };

    void solve(int testcase)
    {
        boost();

        int n, m;
        cin >> n >> m;
        if(n > 1000) exit(0);
        vector<int> a(n);
        cin >> a;

        vector<vector<query>> qrs(n);
        for (int i = 0; i < m; ++i)
        {
            int l, r, k;
            cin >> l >> r >> k;
            --l, --r;
            qrs[r].pb({l, k, i});
        }
        vector<int> ans(m);
        stack<int> vals;

        segTree tree;
        tree.init(n);
        stack<int> poses;

        for (int i = 0; i < n; ++i)
        {
            while (poses.size() and a[poses.top()] <= a[i])
                poses.pop();

            if (poses.size())
            {
                int el = poses.top();
                tree.set(el, a[i] + a[el]);
            }

            for (auto q : qrs[i])
            {
                int res = tree.get(q.l, i + 1);
                ans[q.id] = (int)(q.k >= res);
            }
            exit(0);
            poses.push(i);
        }

        cout << ans << "\n";
    }
};

main()
{
    boost();
    int q = 1;
    // cin >> q;
    for (int i = 0; i < q; i++)
    {
        test t;
        t.solve(i);
    }
    return 0;
}
//[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]//
//                                                                                    //
//                               Coded by Der_Vlἀpos                                  //
//                                                                                    //
//[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]//

Compilation message (stderr)

stones.cpp:194:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  194 | main()
      | ^~~~

• Subtask 1: 0 / 17
• Subtask 2: 0 / 10
• Subtask 3: 0 / 16
• Subtask 4: 0 / 11
• Subtask 5: 0 / 15
• Subtask 6: 0 / 31