Submission #1104607

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1104607	2024-10-24T06:53:03 Z	TIN	Selling RNA Strands (JOI16_selling_rna)	C++17	60 / 100	1500 ms	158100 KB

selling_rna

#include <functional>
#include <iostream>
#include <algorithm>
#include <vector>
#include <string>

int idx(char c) {
    if (c == 'A') return 0;
    if (c == 'U') return 1;
    if (c == 'G') return 2;
    if (c == 'C') return 3;
}

struct Trie {
    struct Node {
		Node* child[4];
		int cnt;
        int left_id, right_id;

		Node() {
			for (int i = 0; i < 4; i++) child[i] = nullptr;
			cnt = 0;
			left_id = right_id = -1;
		}
	};

	Node* root;

	Trie() {
        root = new Node();
	}

    void add_string(std::string s, int id) {
        Node* p = root;
        for (char c : s) {
            int i = idx(c);
            if (p->child[i] == nullptr) p->child[i] = new Node();
            p = p->child[i];
            if (p->left_id == -1) p->left_id = id;
            p->right_id = id;
            p->cnt++;
        }
    }

    void delete_string(std::string s) {
        Node* p = root;
        for (char c : s) {
            int i = idx(c);
            p = p->child[i];
            p->cnt--;
        }
    }

    std::pair<int,int> find_range(std::string s) {
        Node* p = root;
        for (char c : s) {
            int i = idx(c);
            if (p->child[i] == nullptr) return {-1, -1};
            p = p->child[i];
        }
        return {p->left_id, p->right_id};
    }

    int find_cnt(std::string s) {
        Node* p = root;
        for (char c : s) {
            int i = idx(c);
            if (p->child[i] == nullptr) return 0;
            p = p->child[i];
        }
        return p->cnt;
    }
};

Trie trie1, trie2;

int main(void) {
    std::ios_base::sync_with_stdio(0);
    std::cin.tie(0); std::cout.tie(0);
    int n, m; std::cin >> n >> m;
    std::vector<std::string> vec(n);
    for (int i = 0; i < n; i++) std::cin >> vec[i];
    std::sort(vec.begin(), vec.end());
    for (int i = 0; i < n; i++) {
        trie1.add_string(vec[i], i);
        std::reverse(vec[i].begin(), vec[i].end());
    }
    std::vector<int> ans(m, 0);
    std::vector<std::string> p(m), q(m);
    std::vector<std::pair<std::pair<int,int>,int>> events(m);
    for (int i = 0; i < m; i++) {
        std::cin >> p[i] >> q[i];
        std::reverse(q[i].begin(), q[i].end());
        std::pair<int,int> pi = trie1.find_range(p[i]);
        events[i].first.first = pi.first;
        events[i].first.second = pi.second;
        events[i].second = i;
    }
    std::sort(events.begin(), events.end(), [](auto p1, auto p2) {
        if (p1.first.first / 350 != p2.first.first / 350) p1.first.first / 350 < p2.first.first / 350;
        return p1.first.second < p2.first.second;
    });
    int L = 1, R = 0;
    for (int i = 0; i < m; i++) {
        int l = events[i].first.first, r = events[i].first.second;
        if (l == -1 && r == -1) continue;
        while (R < r) trie2.add_string(vec[++R], i);
        while (R > r) trie2.delete_string(vec[R--]);
        while (L > l) trie2.add_string(vec[--L], i);
        while (L < l) trie2.delete_string(vec[L++]);
        ans[events[i].second] = trie2.find_cnt(q[events[i].second]);
    }
    for (int i = 0; i < m; i++) std::cout << ans[i] << '\n';
    return 0;
}

Compilation message

selling_rna.cpp: In instantiation of 'main()::<lambda(auto:1, auto:2)> [with auto:1 = std::pair<std::pair<int, int>, int>; auto:2 = std::pair<std::pair<int, int>, int>]':
/usr/include/c++/10/bits/predefined_ops.h:156:30:   required from 'constexpr bool __gnu_cxx::__ops::_Iter_comp_iter<_Compare>::operator()(_Iterator1, _Iterator2) [with _Iterator1 = __gnu_cxx::__normal_iterator<std::pair<std::pair<int, int>, int>*, std::vector<std::pair<std::pair<int, int>, int> > >; _Iterator2 = __gnu_cxx::__normal_iterator<std::pair<std::pair<int, int>, int>*, std::vector<std::pair<std::pair<int, int>, int> > >; _Compare = main()::<lambda(auto:1, auto:2)>]'
/usr/include/c++/10/bits/stl_algo.h:82:17:   required from 'void std::__move_median_to_first(_Iterator, _Iterator, _Iterator, _Iterator, _Compare) [with _Iterator = __gnu_cxx::__normal_iterator<std::pair<std::pair<int, int>, int>*, std::vector<std::pair<std::pair<int, int>, int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<main()::<lambda(auto:1, auto:2)> >]'
/usr/include/c++/10/bits/stl_algo.h:1924:34:   required from '_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<std::pair<int, int>, int>*, std::vector<std::pair<std::pair<int, int>, int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<main()::<lambda(auto:1, auto:2)> >]'
/usr/include/c++/10/bits/stl_algo.h:1958:38:   required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<std::pair<int, int>, int>*, std::vector<std::pair<std::pair<int, int>, int> > >; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<main()::<lambda(auto:1, auto:2)> >]'
/usr/include/c++/10/bits/stl_algo.h:1974:25:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<std::pair<int, int>, int>*, std::vector<std::pair<std::pair<int, int>, int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<main()::<lambda(auto:1, auto:2)> >]'
/usr/include/c++/10/bits/stl_algo.h:4892:18:   required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::pair<std::pair<int, int>, int>*, std::vector<std::pair<std::pair<int, int>, int> > >; _Compare = main()::<lambda(auto:1, auto:2)>]'
selling_rna.cpp:102:6:   required from here
selling_rna.cpp:100:80: warning: statement has no effect [-Wunused-value]
  100 |         if (p1.first.first / 350 != p2.first.first / 350) p1.first.first / 350 < p2.first.first / 350;
      |                                                           ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
selling_rna.cpp: In function 'int idx(char)':
selling_rna.cpp:12:1: warning: control reaches end of non-void function [-Wreturn-type]
   12 | }
      | ^

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct

Subtask #2

25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	157 ms	128072 KB	Output is correct
2	Correct	162 ms	121928 KB	Output is correct
3	Correct	953 ms	126600 KB	Output is correct
4	Correct	986 ms	120896 KB	Output is correct
5	Correct	253 ms	155980 KB	Output is correct
6	Correct	248 ms	158100 KB	Output is correct
7	Correct	241 ms	6728 KB	Output is correct
8	Correct	117 ms	96356 KB	Output is correct
9	Correct	99 ms	81992 KB	Output is correct
10	Correct	79 ms	77396 KB	Output is correct

Subtask #3

25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	19 ms	6224 KB	Output is correct
2	Correct	324 ms	4072 KB	Output is correct
3	Correct	354 ms	5012 KB	Output is correct
4	Correct	14 ms	4176 KB	Output is correct
5	Correct	427 ms	4168 KB	Output is correct
6	Correct	748 ms	5012 KB	Output is correct

Subtask #4

0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	157 ms	128072 KB	Output is correct
9	Correct	162 ms	121928 KB	Output is correct
10	Correct	953 ms	126600 KB	Output is correct
11	Correct	986 ms	120896 KB	Output is correct
12	Correct	253 ms	155980 KB	Output is correct
13	Correct	248 ms	158100 KB	Output is correct
14	Correct	241 ms	6728 KB	Output is correct
15	Correct	117 ms	96356 KB	Output is correct
16	Correct	99 ms	81992 KB	Output is correct
17	Correct	79 ms	77396 KB	Output is correct
18	Correct	19 ms	6224 KB	Output is correct
19	Correct	324 ms	4072 KB	Output is correct
20	Correct	354 ms	5012 KB	Output is correct
21	Correct	14 ms	4176 KB	Output is correct
22	Correct	427 ms	4168 KB	Output is correct
23	Correct	748 ms	5012 KB	Output is correct
24	Correct	188 ms	107336 KB	Output is correct
25	Correct	192 ms	110064 KB	Output is correct
26	Correct	160 ms	105204 KB	Output is correct
27	Execution timed out	1577 ms	105812 KB	Time limit exceeded
28	Halted	0 ms	0 KB	-