Submission #826465

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
826465	2023-08-15 15:35:10	esomer	Radio Towers (IOI22_towers)	C++17	27 / 100	4080 ms	23032 KiB

towers

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#include <bits/stdc++.h>
#include "towers.h"
using namespace std;
int N, spec;
vector<int> H, lw;
vector<vector<pair<int, int>>> mn;
pair<int, int> get_mx(int l, int r){
  int k = lw[r - l + 1];
  return max(mn[k][r], mn[k][l + (1 << k) - 1]);
}
void init(int n, vector<int> H1) {
  N = n;
  H = H1;
  spec = 0;
  bool asc = 1;
  for(int i = 1; i < N; i++){
    if(spec == -1) break;
    if(H[i] > H[i-1]){
      if(asc) spec = i;
      else spec = -1;
    }else{
      asc = 0;
    }
  }
  lw.resize(N+1);
  mn.assign(20, vector<pair<int, int>>(N));
 
 
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