제출 #781977

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
781977		FEDIKUS	Radio Towers (IOI22_towers)	C++17	11 / 100	4101 ms	4240 KiB

towers

#include "towers.h"

#include <bits/stdc++.h>

using namespace std;

const int maxn=1e5+10;

int n;
int h[maxn];

void init(int _n, vector<int> _h) {
  n=_n;
  for(int i=0;i<n;i++) h[i]=_h[i];
}

int resi(int l,int r,int d,int naj=1e9+10){
  if(r<l) return 0;
  pair<int,int> maxi={-1,-1};
  int klk=0;
  for(int i=l;i<=r;i++){
    if(h[i]<=naj) klk++;
    maxi=max(maxi,{h[i],i});
  }
  return max(resi(l,maxi.second-1,d,maxi.first-d)+resi(maxi.second+1,r,d,maxi.first-d),int(klk>0));
}

int max_towers(int l, int r, int d) {
  return resi(l,r,d);
}

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