Submission #702222

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
702222	2023-02-23 10:30:50	dykw	Radio Towers (IOI22_towers)	C++17	17 / 100	1004 ms	35604 KiB

towers

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#include "towers.h"
#include <bits/stdc++.h>
using namespace std;
constexpr int MaxN = 100000;
constexpr int LogN = 16;
constexpr int Inf = 1E9;
namespace RMQ {
  int st[LogN + 1][MaxN];
  
  void build(vector<int> &H) {
    int N = H.size();
    for (int i = 0; i < N; ++i) {
      st[0][i] = H[i];
    }
    for (int i = 1; (1 << i) <= N; ++i) {
      for (int j = 0; j + (1 << i) - 1 < N; ++j) {
        st[i][j] = max(st[i - 1][j], st[i - 1][j + (1 << (i - 1))]);
      }
    }
  }
  
  int ask(int l, int r) {
    if (l > r) {
      return -1;
    }
    int k = __lg(r - l + 1);
 
 
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