oj.uz

Submission #820012

# Submission time Handle Problem Language Result Execution time Memory
820012 2023-08-10T17:37:12 Z vjudge1 Selling RNA Strands (JOI16_selling_rna) C++17
100 / 100
 211 ms 275244 KB 
#include <bits/stdc++.h>
using namespace std;

int c[256];

class trie_t {
       public:
        int l, r, is_sorted;
        vector<int> index;
        trie_t* g[4];
        trie_t() {
                l = 1e9, r = -1, is_sorted = 0;
                for (int i = 0; i < 4; i++) g[i] = nullptr;
        }

        static void add(trie_t* root, const string& s, int id) {
                for (auto&& x : s) {
                        if (!root->g[c[x]]) {
                                root->g[c[x]] = new trie_t();
                        }
                        root = root->g[c[x]];
                        root->index.emplace_back(id);
                        root->l = min(root->l, id);
                        root->r = max(root->r, id);
                }
        }

        static pair<int, int> get(trie_t* root, const string& s) {
                for (auto&& x : s) {
                        if (!root->g[c[x]]) {
                                return {-1, -1};
                        }
                        root = root->g[c[x]];
                }
                return {root->l, root->r};
        }

        static int solve(trie_t* root, int l, int r, const string& s) {
                for (auto&& x : s) {
                        if (!root->g[c[x]]) {
                                return 0;
                        }
                        root = root->g[c[x]];
                }
                if (!root->is_sorted) sort(root->index.begin(), root->index.end()), root->is_sorted = 1;
                return upper_bound(root->index.begin(), root->index.end(), r) - lower_bound(root->index.begin(), root->index.end(), l);
        }
};

int32_t main() {
        ios_base::sync_with_stdio(0);
        cin.tie(0);
        c['A'] = 0, c['G'] = 1, c['C'] = 2, c['U'] = 3;
        int n, m;
        cin >> n >> m;
        vector<string> a(n), b(m);
        for (int i = 0; i < n; i++) cin >> a[i];
        sort(a.begin(), a.end());
        trie_t* tree = new trie_t();
        trie_t* rev_tree = new trie_t();
        for (int i = 0; i < n; i++) trie_t::add(tree, a[i], i);
        for (int i = 0; i < n; i++) reverse(a[i].begin(), a[i].end());
        for (int i = 0; i < n; i++) trie_t::add(rev_tree, a[i], i);
        for (int i = 0; i < m; i++) {
                string p, q;
                cin >> p >> q;
                reverse(q.begin(), q.end());
                auto [l, r] = trie_t::get(tree, p);
                cout << (l <= r ? trie_t::solve(rev_tree, l, r, q) : 0) << '\n';
        }
}

Compilation message

selling_rna.cpp: In static member function 'static void trie_t::add(trie_t*, const string&, int)':
selling_rna.cpp:18:40: warning: array subscript has type 'char' [-Wchar-subscripts]
   18 |                         if (!root->g[c[x]]) {
      |                                        ^
selling_rna.cpp:19:43: warning: array subscript has type 'char' [-Wchar-subscripts]
   19 |                                 root->g[c[x]] = new trie_t();
      |                                           ^
selling_rna.cpp:21:42: warning: array subscript has type 'char' [-Wchar-subscripts]
   21 |                         root = root->g[c[x]];
      |                                          ^
selling_rna.cpp: In static member function 'static std::pair<int, int> trie_t::get(trie_t*, const string&)':
selling_rna.cpp:30:40: warning: array subscript has type 'char' [-Wchar-subscripts]
   30 |                         if (!root->g[c[x]]) {
      |                                        ^
selling_rna.cpp:33:42: warning: array subscript has type 'char' [-Wchar-subscripts]
   33 |                         root = root->g[c[x]];
      |                                          ^
selling_rna.cpp: In static member function 'static int trie_t::solve(trie_t*, int, int, const string&)':
selling_rna.cpp:40:40: warning: array subscript has type 'char' [-Wchar-subscripts]
   40 |                         if (!root->g[c[x]]) {
      |                                        ^
selling_rna.cpp:43:42: warning: array subscript has type 'char' [-Wchar-subscripts]
   43 |                         root = root->g[c[x]];
      |                                          ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 324 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 180 ms 233664 KB Output is correct
2 Correct 182 ms 221424 KB Output is correct
3 Correct 181 ms 230692 KB Output is correct
4 Correct 177 ms 219888 KB Output is correct
5 Correct 209 ms 271132 KB Output is correct
6 Correct 211 ms 275244 KB Output is correct
7 Correct 85 ms 24652 KB Output is correct
8 Correct 193 ms 177136 KB Output is correct
9 Correct 166 ms 150604 KB Output is correct
10 Correct 141 ms 144716 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 5244 KB Output is correct
2 Correct 16 ms 4192 KB Output is correct
3 Correct 19 ms 4620 KB Output is correct
4 Correct 20 ms 3948 KB Output is correct
5 Correct 17 ms 4148 KB Output is correct
6 Correct 20 ms 4624 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 180 ms 233664 KB Output is correct
9 Correct 182 ms 221424 KB Output is correct
10 Correct 181 ms 230692 KB Output is correct
11 Correct 177 ms 219888 KB Output is correct
12 Correct 209 ms 271132 KB Output is correct
13 Correct 211 ms 275244 KB Output is correct
14 Correct 85 ms 24652 KB Output is correct
15 Correct 193 ms 177136 KB Output is correct
16 Correct 166 ms 150604 KB Output is correct
17 Correct 141 ms 144716 KB Output is correct
18 Correct 20 ms 5244 KB Output is correct
19 Correct 16 ms 4192 KB Output is correct
20 Correct 19 ms 4620 KB Output is correct
21 Correct 20 ms 3948 KB Output is correct
22 Correct 17 ms 4148 KB Output is correct
23 Correct 20 ms 4624 KB Output is correct
24 Correct 168 ms 193868 KB Output is correct
25 Correct 164 ms 195280 KB Output is correct
26 Correct 181 ms 191532 KB Output is correct
27 Correct 177 ms 191552 KB Output is correct
28 Correct 127 ms 54256 KB Output is correct
29 Correct 58 ms 19864 KB Output is correct