답안 #151412

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
151412	2019-09-02T18:52:53 Z	AlexPop28	HicCup (FXCUP4_hiccup)	C++17	100 / 100	32 ms	8280 KB

hiccup

#include <bits/stdc++.h>
#include "hiccup.h"

using namespace std;

const int INF = (int)1e9 + 5;

int Solve(int left, int right, const string &s, const vector<int> &lft) {
  if (left > right) {
    return INF;
  }
  if (s[left] == '!') {
    return -1;
  }
  int cnt_excl = 0, cnt_intervals = 0, ans = INF;
  for (int i = right; i >= left; --i) {
    if (s[i] == '!') {
      ++cnt_excl;
    } else {
      assert(s[i] == 'C');
      ++cnt_intervals;
      ans = min({ans, Solve(lft[i] + 1, i - 1, s, lft), cnt_excl / cnt_intervals});
      i = lft[i];
    }
  }
  return ans;
}

int HicCup(string s) {
  int n = s.length();
  vector<int> h_pos, lft(n);
  for (int i = 0; i < n; ++i) {
    if (s[i] == 'H') {
      h_pos.emplace_back(i);
    } else if (s[i] == 'C') {
      if (h_pos.empty()) return -1;
      lft[i] = h_pos.back();
      h_pos.pop_back();
    }
  }
  if (!h_pos.empty()) return -1;
  return Solve(0, n - 1, s, lft);
}

Subtask #1

24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	256 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	3 ms	504 KB	Output is correct
5	Correct	31 ms	8184 KB	Output is correct
6	Correct	12 ms	8184 KB	Output is correct
7	Correct	12 ms	8184 KB	Output is correct
8	Correct	32 ms	8184 KB	Output is correct
9	Correct	31 ms	8280 KB	Output is correct
10	Correct	12 ms	8184 KB	Output is correct
11	Correct	2 ms	252 KB	Output is correct

Subtask #2

76.0 / 76.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	256 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	3 ms	504 KB	Output is correct
5	Correct	31 ms	8184 KB	Output is correct
6	Correct	12 ms	8184 KB	Output is correct
7	Correct	12 ms	8184 KB	Output is correct
8	Correct	32 ms	8184 KB	Output is correct
9	Correct	31 ms	8280 KB	Output is correct
10	Correct	12 ms	8184 KB	Output is correct
11	Correct	14 ms	8184 KB	Output is correct
12	Correct	13 ms	8184 KB	Output is correct
13	Correct	12 ms	8184 KB	Output is correct
14	Correct	2 ms	380 KB	Output is correct
15	Correct	15 ms	8184 KB	Output is correct
16	Correct	2 ms	256 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	3 ms	888 KB	Output is correct
19	Correct	16 ms	8148 KB	Output is correct
20	Correct	16 ms	8140 KB	Output is correct
21	Correct	16 ms	8184 KB	Output is correct
22	Correct	15 ms	7672 KB	Output is correct
23	Correct	16 ms	8184 KB	Output is correct
24	Correct	17 ms	8156 KB	Output is correct
25	Correct	30 ms	8140 KB	Output is correct
26	Correct	20 ms	8184 KB	Output is correct
27	Correct	16 ms	8184 KB	Output is correct
28	Correct	15 ms	7976 KB	Output is correct
29	Correct	15 ms	8184 KB	Output is correct
30	Correct	2 ms	256 KB	Output is correct
31	Correct	2 ms	268 KB	Output is correct
32	Correct	3 ms	888 KB	Output is correct
33	Correct	2 ms	252 KB	Output is correct