oj.uz

Submission #343126

# Submission time Handle Problem Language Result Execution time Memory
343126 2021-01-03T12:33:27 Z sinamhdv Selling RNA Strands (JOI16_selling_rna) C++11
100 / 100
 319 ms 153196 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int mod = 1000 * 1000 * 1000 + 7;
const int INF = 1000 * 1000 * 1000;
const ll LINF = (ll)INF * INF;

#ifdef DEBUG
#define dbg(x) cout << #x << " = " << (x) << endl << flush;
#define dbgr(s, f) { cout << #s << ": "; for (auto _ = (s); _ != (f); _++) cout << *_ << ' '; cout << endl << flush; }
#else
#define dbg(x) ;
#define dbgr(s, f) ;
#endif
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define fast_io ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define msub(a, b) ((mod + ((ll)(a) - (b)) % mod) % mod)
#define mdiv(a, b) ((ll)(a) * poww((b), mod - 2) % mod)
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define mp make_pair
#define fr first
#define sc second
#define endl '\n'

#define MAXN 100100
#define MAXL 2000100

int n, m;
vector<int> s[MAXN];
int sttime[MAXL], fntime[MAXL], timer;
int trie[MAXL][4];
int tn = 1;
int suftrie[MAXL][4];
int stn = 1;
int strend[MAXN];

vector<int> sts[MAXL];

inline void str2vec(const string &s, vector<int> &v)
{
	for (char c : s)
	{
		if (c == 'A')
			v.pb(0);
		else if (c == 'G')
			v.pb(1);
		else if (c == 'C')
			v.pb(2);
		else	// U
			v.pb(3);
	}
}

void add(const vector<int> &s, bool rev, int ind, int cld[MAXL][4])
{
	int &cnt = (rev ? stn : tn);
	int dir = (rev ? -1 : 1);
	int beg = 0;
	int end = s.size() - 1;
	if (rev)
		swap(beg, end);
	int v = 1;
	for (int i = beg; (rev && i >= end) || (!rev && i <= end); i += dir)
	{
		if (rev)
			sts[v].pb(sttime[strend[ind]]);
		int u = s[i];
		if (!cld[v][u])
		{
			cnt++;
			cld[v][u] = cnt;
		}
		v = cld[v][u];
	}
	if (rev)
		sts[v].pb(sttime[strend[ind]]);
	if (!rev)
		strend[ind] = v;
}

void dfs(int v)
{
	sttime[v] = timer++;
	FOR(i, 0, 4)
	{
		if (!trie[v][i])
			continue;
		dfs(trie[v][i]);
	}
	fntime[v] = timer;
}

int _find(const vector<int> &s, int trie[MAXL][4])
{
	int v = 1;
	for (int u : s)
	{
		if (!trie[v][u])
		{
			return -1;
		}
		v = trie[v][u];
	}
	return v;
}

int32_t main(void)
{
	fast_io;
	cin >> n >> m;
	FOR(i, 0, n)
	{
		string si;
		cin >> si;
		str2vec(si, s[i]);
		add(s[i], false, i, trie);
	}
	dfs(1);
	FOR(i, 0, n)
	{
		add(s[i], true, i, suftrie);
	}
	FOR(i, 1, stn + 1)
	{
		sort(all(sts[i]));
	}
	while (m--)
	{
		string p, q;
		cin >> p >> q;
		vector<int> pv, qv;
		str2vec(p, pv);
		str2vec(q, qv);
		reverse(all(qv));
		int lv = _find(pv, trie);
		int rv = _find(qv, suftrie);
		if (lv < 0 || rv < 0)
		{
			cout << 0 << endl;
			continue;
		}
		auto it1 = lower_bound(all(sts[rv]), sttime[lv]);
		auto it2 = lower_bound(all(sts[rv]), fntime[lv]);
		int ans = it2 - it1;
		cout << ans << endl;
	}
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 49772 KB Output is correct
2 Correct 31 ms 49644 KB Output is correct
3 Correct 29 ms 49644 KB Output is correct
4 Correct 30 ms 49644 KB Output is correct
5 Correct 29 ms 49644 KB Output is correct
6 Correct 29 ms 49644 KB Output is correct
7 Correct 29 ms 49644 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 272 ms 153196 KB Output is correct
2 Correct 273 ms 148844 KB Output is correct
3 Correct 293 ms 118124 KB Output is correct
4 Correct 291 ms 116076 KB Output is correct
5 Correct 261 ms 142316 KB Output is correct
6 Correct 265 ms 143596 KB Output is correct
7 Correct 130 ms 66796 KB Output is correct
8 Correct 269 ms 116076 KB Output is correct
9 Correct 264 ms 107500 KB Output is correct
10 Correct 234 ms 106476 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 52608 KB Output is correct
2 Correct 61 ms 52076 KB Output is correct
3 Correct 67 ms 52328 KB Output is correct
4 Correct 60 ms 51948 KB Output is correct
5 Correct 69 ms 52076 KB Output is correct
6 Correct 68 ms 52328 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 49772 KB Output is correct
2 Correct 31 ms 49644 KB Output is correct
3 Correct 29 ms 49644 KB Output is correct
4 Correct 30 ms 49644 KB Output is correct
5 Correct 29 ms 49644 KB Output is correct
6 Correct 29 ms 49644 KB Output is correct
7 Correct 29 ms 49644 KB Output is correct
8 Correct 272 ms 153196 KB Output is correct
9 Correct 273 ms 148844 KB Output is correct
10 Correct 293 ms 118124 KB Output is correct
11 Correct 291 ms 116076 KB Output is correct
12 Correct 261 ms 142316 KB Output is correct
13 Correct 265 ms 143596 KB Output is correct
14 Correct 130 ms 66796 KB Output is correct
15 Correct 269 ms 116076 KB Output is correct
16 Correct 264 ms 107500 KB Output is correct
17 Correct 234 ms 106476 KB Output is correct
18 Correct 69 ms 52608 KB Output is correct
19 Correct 61 ms 52076 KB Output is correct
20 Correct 67 ms 52328 KB Output is correct
21 Correct 60 ms 51948 KB Output is correct
22 Correct 69 ms 52076 KB Output is correct
23 Correct 68 ms 52328 KB Output is correct
24 Correct 277 ms 137068 KB Output is correct
25 Correct 298 ms 137324 KB Output is correct
26 Correct 268 ms 136300 KB Output is correct
27 Correct 313 ms 109932 KB Output is correct
28 Correct 319 ms 82276 KB Output is correct
29 Correct 196 ms 63708 KB Output is correct