oj.uz

답안 #599142

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
599142 2022-07-19T10:43:49 Z piOOE Selling RNA Strands (JOI16_selling_rna) C++17
100 / 100
 141 ms 71780 KB 
#include <bits/stdc++.h>

using namespace std;

using ll = long long;

const int inf = 1e9;

void transform(string &str) {
  for (char &c: str) {
    if (c == 'A') c = 'a';
    else if (c == 'G') c = 'b';
    else if (c == 'C') c = 'c';
    else c = 'd';
  }
}

struct node {
  int sz = 0, mn = inf, mx = -inf, go[4] = {-1, -1, -1, -1};

  node() = default;
};

vector<node> t = {{}};

void add(string &str, int key) {
  int v = 0;
  for (int i = 0; i < (int) str.size(); ++i) {
    int c = str[i] - 'a';
    if (t[v].go[c] == -1) {
      t.emplace_back();
      t[v].go[c] = (int) t.size() - 1;
    }
    t[v].sz += 1;
    t[v].mn = min(t[v].mn, key);
    t[v].mx = max(t[v].mx, key);
    v = t[v].go[c];
  }
  t[v].sz += 1;
  t[v].mn = min(t[v].mn, key);
  t[v].mx = max(t[v].mx, key);
}

int find(string &str) {
  int v = 0;
  for (int i = 0; i < (int) str.size() && v != -1; ++i) {
    v = t[v].go[str[i] - 'a'];
  }
  return v;
}


int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n, m;
  cin >> n >> m;
  vector<string> s(n);
  for (int i = 0; i < n; ++i) {
    cin >> s[i];
    transform(s[i]);
  }
  sort(s.begin(), s.end());
  vector<string> a(m), b(m);
  vector<int> ans(m);
  vector<vector<pair<int, int>>> qu(n);
  for (int i = 0; i < m; ++i) {
    cin >> a[i] >> b[i];
    transform(a[i]), transform(b[i]);
    reverse(b[i].begin(), b[i].end());
  }
  for (int i = 0; i < n; ++i) {
    add(s[i], i);
  }
  for (int i = 0; i < m; ++i) {
    int v = find(a[i]);
    if (v == -1) {
      continue;
    }
    assert(t[v].sz == t[v].mx - t[v].mn + 1);
    if (t[v].mn > 0) {
      qu[t[v].mn - 1].emplace_back(i, -1);
    }
    qu[t[v].mx].emplace_back(i, 1);
  }
  t = {{}};
  for (int i = 0; i < n; ++i) {
    reverse(s[i].begin(), s[i].end());
    add(s[i], i);
    for (auto [j, k] : qu[i]) {
      int v = find(b[j]);
      if (v != -1) {
        ans[j] += k * t[v].sz;
      }
    }
  }
  for (int i = 0; i < m; ++i) {
    cout << ans[i] << '\n';
  }
  return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #2
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 101 ms 66224 KB Output is correct
2 Correct 99 ms 66612 KB Output is correct
3 Correct 95 ms 66436 KB Output is correct
4 Correct 96 ms 66568 KB Output is correct
5 Correct 83 ms 63656 KB Output is correct
6 Correct 82 ms 63632 KB Output is correct
7 Correct 54 ms 11980 KB Output is correct
8 Correct 86 ms 41884 KB Output is correct
9 Correct 92 ms 41828 KB Output is correct
10 Correct 61 ms 36816 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 31 ms 7880 KB Output is correct
2 Correct 20 ms 5484 KB Output is correct
3 Correct 24 ms 6596 KB Output is correct
4 Correct 18 ms 5600 KB Output is correct
5 Correct 19 ms 5200 KB Output is correct
6 Correct 25 ms 6552 KB Output is correct

Subtask #4
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 101 ms 66224 KB Output is correct
9 Correct 99 ms 66612 KB Output is correct
10 Correct 95 ms 66436 KB Output is correct
11 Correct 96 ms 66568 KB Output is correct
12 Correct 83 ms 63656 KB Output is correct
13 Correct 82 ms 63632 KB Output is correct
14 Correct 54 ms 11980 KB Output is correct
15 Correct 86 ms 41884 KB Output is correct
16 Correct 92 ms 41828 KB Output is correct
17 Correct 61 ms 36816 KB Output is correct
18 Correct 31 ms 7880 KB Output is correct
19 Correct 20 ms 5484 KB Output is correct
20 Correct 24 ms 6596 KB Output is correct
21 Correct 18 ms 5600 KB Output is correct
22 Correct 19 ms 5200 KB Output is correct
23 Correct 25 ms 6552 KB Output is correct
24 Correct 105 ms 68620 KB Output is correct
25 Correct 109 ms 71780 KB Output is correct
26 Correct 94 ms 67584 KB Output is correct
27 Correct 107 ms 68092 KB Output is correct
28 Correct 141 ms 31972 KB Output is correct
29 Correct 84 ms 18144 KB Output is correct