Submission #1040329

#	Time	Username	Problem	Language	Result	Execution time	Memory
1040329		vjudge1	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	34 / 100	377 ms	262144 KiB

sortbooks

#include <bits/stdc++.h>

using namespace std;
int N=1<<19;
vector<int> bin(2*N, 0);
vector<set<int>> T(2*N);
int ans=0;
int query(int id, int l, int r, int a, int b, int mx)
{
    if(l>=b||r<=a) 
		return -1e9;
    if(a<=l&&r<=b)
    {
        ans=max(ans, bin[id]);
        if(T[id].lower_bound(mx)!=T[id].begin())
        {
            int en=*(--T[id].lower_bound(mx));
            ans=max(ans, mx+en);
        }
        return *(--T[id].end());
    }
    int mid=(l+r)/2;
    mx=max(mx, query(id*2, l, mid, a, b, mx));
    mx=max(mx, query(id*2+1, mid, r, a, b, mx));
    return mx;
}
int main()
{
	ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int n, q;
    cin >> n >> q;
    for (int i=0; i<n; i++)
    {
        int a;
        cin >> a;
        T[i+N].insert(a);
    }
    for(int i=n; i<N; i++) 
		T[i+N].insert(1e9);
    for(int i=N-1; i>0; i--)
    {
        for (int x:T[i*2]) 
			T[i].insert(x);
        for (int x:T[i*2+1]) 
			T[i].insert(x);
        bin[i]=max(bin[i*2], bin[i*2+1]);
        int mx=*(--T[i*2].end());
        if (T[i*2+1].lower_bound(mx)!=T[i*2+1].begin())
            bin[i]=max(bin[i], mx+*(--T[i*2+1].lower_bound(mx)));
    } 
    while(q--)
    {
        int l, r, mood;
        cin >> l >> r >> mood;
        l--;
        ans=0;
        query(1, 0, N, l, r, -1e9);
        if(ans<=mood) 
			cout << "1\n";
        else
			cout << "0\n";
    }
    return 0;
}

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