Submission #1171711

#	Time	Username	Problem	Language	Result	Execution time	Memory
1171711		LilPluton	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	0 / 100	837 ms	105152 KiB

sortbooks

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>  
using namespace __gnu_pbds;
using namespace std;
#define int long long
#define ar array
#define vc vector
#define all(x) x.begin(), x.end()
#define sortall(x) sort(all(x)) 
#define rep(i,a,b) for(int i = a; i < b; i++)
#define per(i,a,b) for(int i = a; i >= b; i--)
#define trav(a,x) for(auto& a : x)
#define sz(x) (int)(x).size()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define endl '\n'
#define debug(x) cerr << #x << " = " << x << endl
const int N = 1e6 + 5;
const int inf = 1e15;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> 

vector<int> st(N * 4), a(N);

void upd(int node,int tl,int tr,int l,int r,int val){
    if(r < tl || l > tr){
        return;
    }
    if(l <= tl && tr <= r){
        st[node] = max(st[node], val);
        return;
    }
    int mid = (tl + tr) >> 1;
    upd(node * 2, tl, mid, l, r, val);
    upd(node * 2 + 1, mid + 1, tr, l, r, val);
    st[node] = max(st[node * 2], st[node * 2 + 1]);
}

int get(int node,int tl,int tr,int l,int r){
    if(r < tl || l > tr){
        return 0;
    }
    if(l <= tl && tr <= r){
        return st[node];
    }
    int mid = (tl + tr) >> 1;
    return max(get(node * 2, tl, mid, l, r), get(node * 2 + 1, mid + 1, tr, l, r));
}

void solve(){
    int n, q;
    cin >> n >> q;
    for(int i = 1; i <= n; ++i){
        cin >> a[i];
    }
    stack<int> stck;
    vector<vector<ar<int,3>>> qr(n + 1);
    for(int i = 0; i < q; ++i){
        int l, r, k;
        cin >> l >> r >> k;
        qr[r].pb({l, k, i});
    }
    vector<int> res(q);
    for(int i = 1; i <= n; ++i){
        while(!stck.empty() && a[stck.top()] < a[i]){
            stck.pop();
        }
        if(!stck.empty()){
            upd(1, 1, n, stck.top(), n, a[stck.top()] + a[i]);
        }
        stck.push(i);
        for(auto [l, k, id] : qr[i]){
            res[id] = (get(1, 1, n, l, n) <= k ? 1 : 0);
        }
    }
    for(auto i : res){
        cout << i << endl;
    }
}

signed main() {
    ios::sync_with_stdio(0); cin.tie(0);
    int T = 1;
    while(T--){
        solve();
    }
    return 0;
}

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