Submission #884583

#	Time	Username	Problem	Language	Result	Execution time	Memory
884583		Andrey	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	13 / 100	968 ms	86276 KiB

sortbooks

#include <bits/stdc++.h>
using namespace std;

vector<int> haha(1000001);
vector<pair<int,int>> seg(4000001);
vector<int> wow(4000001);
int d = 0;

void build(int l, int r, int x) {
    if(l == r) {
        seg[x] = {haha[l],haha[l]};
        return;
    }
    int m = (l+r)/2;
    build(l,m,x*2+1);
    build(m+1,r,x*2+2);
    pair<int,int> a = seg[x*2+1],b = seg[x*2+2];
    seg[x] = {max(a.first,b.first),min(a.second,b.second)};
    wow[x] = max(wow[x*2+1],wow[x*2+2]);
    if(a.first > b.second) {
        wow[x] = max(wow[x],a.first+b.second);
    }
}

pair<int,int> calc(int l, int r, int ql, int qr, int x) {
    if(ql == l && qr == r) {
        d = max(d,wow[x]);
        return seg[x];
    }
    int m = (l+r)/2;
    if(qr <= m) {
        return calc(l,m,ql,qr,x*2+1);
    }
    else if(ql > m) {
        return calc(m+1,r,ql,qr,x*2+2);
    }
    else {
        pair<int,int> a = calc(l,m,ql,m,x*2+1);
        pair<int,int> b = calc(m+1,r,m+1,qr,x*2+2);
        if(a.first > b.second) {
            d = max(d,a.first+b.second);
        }
        return {max(a.first,b.first),min(a.second,b.second)};
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int n,m,l,r,k;
    cin >> n >> m;
    for(int i = 1; i <= n; i++) {
        cin >> haha[i];
    }
    build(1,n,0);
    for(int i = 0; i < m; i++) {
        cin >> l >> r >> k;
        d = 0;
        calc(1,n,l,r,0);
        if(d > k) {
            cout << 0 << "\n";
        }
        else {
            cout << 1 << "\n";
        }
    }
    return 0;
}

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