Submission #1267373

#	Time	Username	Problem	Language	Result	Execution time	Memory
1267373		Faggi	송신탑 (IOI22_towers)	C++20	14 / 100	256 ms	2332 KiB

towers

#include <bits/stdc++.h>
#define ll long long
using namespace std;


ll n;
vector<int>h;
vector<ll>v;
void init(int N, std::vector<int> H) {
  h=H;
  v.resize(N,0);
  n=N;
  ll i;
  for(i=1; i<N; i++)
  {
      v[i]=v[i-1];
      if(i+1<N&&H[i]<H[i+1]&&H[i]<H[i-1])
          v[i]++;
  }
}

int max_towers(int L, int R, int D) {
  if(L==R)
      return 1;
  int ans=v[R-1]-v[L];
  if(h[L]<h[L+1])
      ans++;
  if(h[R]<h[R-1])
      ans++;    
  return ans;
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 11
• Subtask 3: 0 / 12
• Subtask 4: 14 / 14
• Subtask 5: 0 / 17
• Subtask 6: 0 / 19
• Subtask 7: 0 / 23