Submission #168757

#	Time	Username	Problem	Language	Result	Execution time	Memory
168757		RafaelSus	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	0 / 100	1172 ms	27820 KiB

sortbooks

#include <bits/stdc++.h>

using namespace std;
const long long mod = 1e9 + 7;
const int maxn = 1e6 + 6;

int a[maxn];
int b[maxn];

int t[maxn * 4];

void build(int v, int tl, int tr){
  if (tl == tr){
    t[v] = b[tl - 1];
  }else{
    int tm = (tl + tr) / 2;
    build (v + v, tl, tm);
    build (v + v + 1, tm + 1, tr);
    t[v] = max(t[v + v], t[v + v + 1]);
  }
}

int q(int v, int tl, int tr, int l, int r){
  if (l > r) return 0;
  if (tl == l && tr == r)return t[v];
  int tm = (tl + tr) / 2;
  return max(q(v + v, tl, tm, l, min(tm, r)), q(v + v + 1, tm + 1, tr, max(l, tm + 1), r));
}

int main(){

  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);

  int n, m;
  cin >> n >> m;
  vector <int> h;
  for (int i = 0; i < n; i++){
    cin >> a[i];
    while (!h.empty() && a[h.back()] <= a[i])h.pop_back();
    if (h.empty())h.push_back(i);
    else{
      int idx = h.back();
      b[i] = a[idx] + a[i];
    }
  }
  //for (int i = 0; i < n; i++)cout << b[i] << ' ';
  //cout << '\n';
  build(1, 1, n);
  for (int i = 0; i < m; i++){
    int l, r, mo;
    cin >> l >> r >> mo;
    //cout << l << ' ' << r << ' ';
    //cout << q(1, 1, n, l, r) << ' ';
    if (q(1, 1, n, l, r) > mo){
      cout << "0\n";
    }else {
      cout << "1\n";
    }
  }
  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