Submission #825005

#	Time	Username	Problem	Language	Result	Execution time	Memory
825005		LittleCube	Radio Towers (IOI22_towers)	C++17	0 / 100	454 ms	1824 KiB

towers

#include "towers.h"
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define F first
#define S second
using namespace std;

namespace
{
  int N;
  vector<int> H, s;
}

void init(int _N, vector<int> _H)
{
  H = _H;
  N = _N;
  s.resize(N);
  for (int i = 1; i + 1 < N; i++)
    s[i] = (H[i - 1] < H[i] && H[i] > H[i + 1]);
  for (int i = 1; i < N; i++)
    s[i] += s[i - 1];
}

int max_towers(int L, int R, int D)
{
  if(R - L <= 1)
    return 1;
  return max(1, s[R - 1] - s[L]);
}

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