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Submission #671099

# Submission time Handle Problem Language Result Execution time Memory
671099 2022-12-12T02:02:43 Z GusterGoose27 Selling RNA Strands (JOI16_selling_rna) C++11
100 / 100
 577 ms 671136 KB 
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 1e5;
int ans[MAXN];
vector<int> queries[MAXN];
int n, m;
map<char, int> conv({{'A', 0}, {'U', 1}, {'G', 2}, {'C', 3}});

class Trie {
public:
	Trie *nxt[4];
	int sz;
	Trie *rev_t;
	int term = 0; // num ending at this position
	vector<int> rev_queries;
	vector<int> seq;
	Trie() {
		sz = 0;
		for (int i = 0; i < 4; i++) nxt[i] = nullptr;
	}
	void merge(Trie *oth) {
		sz += oth->sz;
		for (int i = 0; i < 4; i++) {
			if (nxt[i] == nullptr) nxt[i] = oth->nxt[i];
			else if (oth->nxt[i] != nullptr) nxt[i]->merge(oth->nxt[i]);
		}
		// delete oth;
	}
	void ins(vector<int> &s, int p = 0, int num = 1) {
		sz += num;
		if (p == s.size()) {
			term += num;
			seq = s;
			return;
		}
		if (nxt[s[p]] == nullptr) nxt[s[p]] = new Trie();
		nxt[s[p]]->ins(s, p+1, num);
	}
	void ins_query(vector<int> &f, int p, int id) {
		if (p == f.size()) rev_queries.push_back(id);
		else {
			if (nxt[f[p]] != nullptr) nxt[f[p]]->ins_query(f, p+1, id);
		}
	}
	void dfs() {
		for (int i = 0; i < 4; i++) if (nxt[i] != nullptr) nxt[i]->dfs();
		rev_t = new Trie();
		if (term) {
			reverse(seq.begin(), seq.end());
			rev_t->ins(seq, 0, term);
		}
		for (int i = 0; i < 4; i++) if (nxt[i] != nullptr) rev_t->merge(nxt[i]->rev_t);
		for (int v: rev_queries) {
			reverse(queries[v].begin(), queries[v].end());
			ans[v] = rev_t->count(queries[v]);
		}
	}
	int count(vector<int> &v, int p = 0) {
		if (p == v.size()) return sz;
		if (nxt[v[p]] == nullptr) return 0;
		return nxt[v[p]]->count(v, p+1);
	}
};

Trie *tree;

int main() {
	ios_base::sync_with_stdio(false); cin.tie(NULL);
	cin >> n >> m;
	tree = new Trie();
	for (int i = 0; i < n; i++) {
		string s; cin >> s;
		vector<int> v;
		for (int j = 0; j < s.size(); j++) v.push_back(conv[s[j]]);
		tree->ins(v);
	}
	for (int i = 0; i < m; i++) {
		string s1, s2; cin >> s1 >> s2;
		vector<int> v1;
		for (int j = 0; j < s1.size(); j++) v1.push_back(conv[s1[j]]);
		for (int j = 0; j < s2.size(); j++) queries[i].push_back(conv[s2[j]]);
		tree->ins_query(v1, 0, i);
	}
	tree->dfs();
	for (int i = 0; i < m; i++) cout << ans[i] << "\n";
}

Compilation message

selling_rna.cpp: In member function 'void Trie::ins(std::vector<int>&, int, int)':
selling_rna.cpp:33:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |   if (p == s.size()) {
      |       ~~^~~~~~~~~~~
selling_rna.cpp: In member function 'void Trie::ins_query(std::vector<int>&, int, int)':
selling_rna.cpp:42:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |   if (p == f.size()) rev_queries.push_back(id);
      |       ~~^~~~~~~~~~~
selling_rna.cpp: In member function 'int Trie::count(std::vector<int>&, int)':
selling_rna.cpp:61:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |   if (p == v.size()) return sz;
      |       ~~^~~~~~~~~~~
selling_rna.cpp: In function 'int main()':
selling_rna.cpp:76:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |   for (int j = 0; j < s.size(); j++) v.push_back(conv[s[j]]);
      |                   ~~^~~~~~~~~~
selling_rna.cpp:82:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |   for (int j = 0; j < s1.size(); j++) v1.push_back(conv[s1[j]]);
      |                   ~~^~~~~~~~~~~
selling_rna.cpp:83:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |   for (int j = 0; j < s2.size(); j++) queries[i].push_back(conv[s2[j]]);
      |                   ~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2680 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2684 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2740 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 197 ms 240300 KB Output is correct
2 Correct 193 ms 229308 KB Output is correct
3 Correct 577 ms 671136 KB Output is correct
4 Correct 542 ms 640036 KB Output is correct
5 Correct 343 ms 421452 KB Output is correct
6 Correct 341 ms 427800 KB Output is correct
7 Correct 199 ms 195884 KB Output is correct
8 Correct 349 ms 403500 KB Output is correct
9 Correct 301 ms 350540 KB Output is correct
10 Correct 219 ms 276464 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 5324 KB Output is correct
2 Correct 21 ms 5320 KB Output is correct
3 Correct 25 ms 5436 KB Output is correct
4 Correct 23 ms 4536 KB Output is correct
5 Correct 24 ms 6264 KB Output is correct
6 Correct 26 ms 5832 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2680 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2684 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2740 KB Output is correct
8 Correct 197 ms 240300 KB Output is correct
9 Correct 193 ms 229308 KB Output is correct
10 Correct 577 ms 671136 KB Output is correct
11 Correct 542 ms 640036 KB Output is correct
12 Correct 343 ms 421452 KB Output is correct
13 Correct 341 ms 427800 KB Output is correct
14 Correct 199 ms 195884 KB Output is correct
15 Correct 349 ms 403500 KB Output is correct
16 Correct 301 ms 350540 KB Output is correct
17 Correct 219 ms 276464 KB Output is correct
18 Correct 26 ms 5324 KB Output is correct
19 Correct 21 ms 5320 KB Output is correct
20 Correct 25 ms 5436 KB Output is correct
21 Correct 23 ms 4536 KB Output is correct
22 Correct 24 ms 6264 KB Output is correct
23 Correct 26 ms 5832 KB Output is correct
24 Correct 177 ms 201432 KB Output is correct
25 Correct 197 ms 202868 KB Output is correct
26 Correct 175 ms 198640 KB Output is correct
27 Correct 457 ms 553392 KB Output is correct
28 Correct 133 ms 39884 KB Output is correct
29 Correct 105 ms 15096 KB Output is correct