제출 #412308

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
412308	2021-05-26 17:11:38	model_code	밀림 점프 (APIO21_jumps)	C++17	100 / 100	1721 ms	50504 KiB

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#include "jumps.h"
#include <bits/stdc++.h>
using namespace std;
constexpr int kMaxLogN = 20;
int N;
vector<int> H;
vector<vector<int>> L, R;
vector<vector<int>> higher;
void init(int _N, std::vector<int> _H) {
  N = _N;
  H = _H;
  H.insert(H.begin(), INT_MAX);
  H.insert(H.end(), INT_MAX);
  N += 2;
  L = R = higher = vector<vector<int>>(kMaxLogN, vector<int>(N));
  stack<int> decreasing_height;
  for (int i = 0; i < N; ++i) {
    while (!decreasing_height.empty() && H[decreasing_height.top()] <= H[i]) {
      decreasing_height.pop();
    }
    L[0][i] = decreasing_height.empty() ? i : decreasing_height.top();
    decreasing_height.push(i);
  }
 
 
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