Submission #992764

#	Time	Username	Problem	Language	Result	Execution time	Memory
992764		danikoynov	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	17 / 100	3091 ms	13508 KiB

sortbooks

#include<bits/stdc++.h>
#define endl '\n'

using namespace std;
typedef long long ll;

void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}

const int maxn = 1e6 + 10;

int n, m, w[maxn];
void solve()
{
    cin >> n >> m;
    for (int i = 1; i <= n; i ++)
    {
        cin >> w[i];
    }

    stack < int > st;
    vector < pair < int, int > > fun;


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

        if (!st.empty())
        {
            fun.push_back({st.top(), i});
        }
        st.push(i);

    }

    for (int i = 1; i <= m; i ++)
    {
        int l, r, k;
        cin >> l >> r >> k;
        int mx = 0;

        for (pair < int, int > cur : fun)
        {
            if (cur.first >= l && cur.second <= r)
                mx = max(mx, w[cur.first] + w[cur.second]);
        }

        cout << (mx <= k) << endl;
    }
}

int main()
{
    speed();
    solve();
    return 0;
}

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 30
• Subtask 6: 0 / 23