제출 #1284981

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1284981		dobri_oke	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++20	0 / 100	1317 ms	199696 KiB

sortbooks

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

const int N = 1e6+1;

int n, q, a[N], t[N * 4], t2[N * 4];
vector < int > g[N * 4];
void build(int v, int l, int r){
    if(l == r){
        t[v] = a[l];
        g[v].pb(a[l]);
        return;
    }
    int m = (l + r) / 2;
    build(v + v, l, m);
    build(v + v + 1, m + 1, r);
    int i = 0, j = 0;
    while(i < g[v + v].size() || j < g[v + v + 1].size()){
        if(i == g[v + v].size()) g[v].pb(g[v + v + 1][j++]);
        else if(j == g[v + v + 1].size()) g[v].pb(g[v + v][i++]);
        else{
            if(g[v + v][i] < g[v + v + 1][j]) g[v].pb(g[v + v][i++]);
            else g[v].pb(g[v + v + 1][j++]);
        }
    }
    t2[v] = max(t2[v + v], t2[v + v + 1]);
    t[v] = max(t[v + v], t[v + v +1]);
    for(int i = g[v + v + 1].size() - 1; i >= 0; i--){
        if(t[v + v] > g[v + v + 1][i]){
            t2[v] = max(t2[v], t[v + v] + g[v + v + 1][i]);
            return;
        }
    }
}
int h[6], z = 0;
void get(int v, int l, int r, int ll, int rr){
    if(ll <= l && r <= rr){
        h[z++] = v;
        return;
    } 
    if(l > rr || ll > r) return;
    int m = (l + r) / 2;
    get(v + v, l, m, ll, rr);
    get(v + v + 1, m + 1, r, ll, rr);
}
void solve(){
    cin >> n >> q;
    for(int i = 1; i <= n; i++) cin >> a[i];
    build(1, 1, n);
    int l, r, k;
    while(q--){
        cin >> l >> r >> k;
        if(l == r){
            cout << 1 << '\n';
            continue;
        }
        get(1, 1, n, l, r);
        int ans=0, mx = t[h[0]];
        for(int i = 0; i < z; i++) ans = max(ans, t2[h[i]]);
        for(int i = 1; i < z; i++){
            for(int j = i; j < z; j++){
                int ll = 0, rr = g[h[j]].size() - 1, cnt = -mx;
                while(ll <= rr){
                    int m = (ll + rr) / 2;
                    if(mx > g[h[j]][m]){
                        cnt = g[h[j]][m];
                        ll = m + 1;
                    }
                    else rr = m - 1;
                }
                ans = max(ans, mx + cnt);
            }
            mx = max(mx, t[h[i]]);
        }
        if(ans <= k) cout << 1 << '\n';
        else cout << 0 << '\n';
        h[0] = h[1] = h[2] = h[3] = h[4] = 0;
        z = 0;
    }
}

signed main(){   
    ios_base::sync_with_stdio(0);   cin.tie(0); cout.tie(0);
    int tt=1;
    while(tt--){
        solve();
    }
}

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