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Submission #209660

# Submission time Handle Problem Language Result Execution time Memory
209660 2020-03-15T03:21:10 Z AQT Selling RNA Strands (JOI16_selling_rna) C++14
100 / 100
 245 ms 174584 KB 
#include <bits/stdc++.h>

using namespace std;

int N, Q;
string s;
int trief[4][2000005];
int trier[4][2000005];
int cntf = 0, cntr = 0;
int lftf[2000005], rhtf[2000005];
int lftr[2000005], rhtr[2000005];
int totf[2000005], totr[2000005];
int pf[200005], pr[200005];
int t = 0;
int qf[200005], qr[200005];
int who[200005];
int bit[4000005];
vector<int> qu[2000005], add[2000005];
int ans[200005];

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

void dfs1(int n){
	lftf[n] = ++t;
	for(int k = 3; k>=0; k--){
		if(trief[k][n]){
			dfs1(trief[k][n]);
		}
	}
	rhtf[n] = ++t;
}

void dfs2(int n){
	lftr[n] = ++t;
	for(int k = 3; k>=0; k--){
		if(trier[k][n]){
			dfs2(trier[k][n]);
		}
	}
	rhtr[n] = ++t;
}

void upd(int n){
	while(n <= 2*cntr+2){
		bit[n]++;
		n += n&-n;
	}
}

int query(int n){
	int ret = 0;
	while(n){
		ret += bit[n];
		n -= n&-n;
	}
	return ret;
}

void dfs3(int n){
	for(int q : qu[n]){
		//cout << "f " << rhtr[qr[q]] << " " << lftr[qr[q]] << "\n";
		ans[q] -= query(rhtr[qr[q]]) - query(lftr[qr[q]]-1);
	}
	for(int k = 3; k>=0; k--){
		if(trief[k][n]){
			dfs3(trief[k][n]);
		}
	}
	for(int a : add[n]){
		//cout << lftr[who[a]] << "\n";
		upd(rhtr[who[a]]);
	}
	for(int q : qu[n]){
		//cout << rhtr[qr[q]] << " " << lftr[qr[q]] << "\n";
		//cout << query(rhtr[qr[q]]) << " " << query(lftr[qr[q]]) << "\n";
		ans[q] += query(rhtr[qr[q]]) - query(lftr[qr[q]]-1);
	}
}

int main(){
	cin.sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin >> N >> Q;
	for(int i = 1; i<=N; i++){
		cin >> s;
		int n = 0;
		for(char c : s){
			int k = getc(c);
			if(!trief[k][n]){
				trief[k][n] = ++cntf;
			}
			n = trief[k][n];
		}
		add[n].emplace_back(i);
		totf[n]++;
		n = 0;
		reverse(s.begin(), s.end());
		for(char c : s){
			int k = getc(c);
			if(!trier[k][n]){
				trier[k][n] = ++cntr;
			}
			n = trier[k][n];
		}
		totr[n]++;
		who[i] = n;
	}
	//cout << cntf << " " << cntr << "\n";
	/*
	for(int k : add[1]){
		cout << k << " ";
	}
	cout << "\n";
	*/
	dfs1(0);
	t = 0;
	dfs2(0);
	for(int i = 1; i<=Q; i++){
		cin >> s;
		int n = 0;
		bool b = 1;
		for(char c : s){
			int k = getc(c);
			if(trief[k][n]){
				n = trief[k][n];
			}
			else{
				b = 0;
				break;
			}
		}
		qf[i] = n;
		n = 0;
		cin >> s;
		if(!b){
			continue;
		}
		reverse(s.begin(), s.end());
		for(char c : s){
			int k = getc(c);
			if(trier[k][n]){
				n = trier[k][n];
			}
			else{
				b = 0;
				break;
			}
		}
		qr[i] = n;
		if(b){
			qu[qf[i]].emplace_back(i);	
		}
	}
	dfs3(0);
	for(int q = 1; q<=Q; q++){
		cout << ans[q] << "\n";
	}
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 94456 KB Output is correct
2 Correct 57 ms 94456 KB Output is correct
3 Correct 57 ms 94456 KB Output is correct
4 Correct 58 ms 94456 KB Output is correct
5 Correct 57 ms 94456 KB Output is correct
6 Correct 60 ms 94456 KB Output is correct
7 Correct 57 ms 94456 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 156536 KB Output is correct
2 Correct 162 ms 158840 KB Output is correct
3 Correct 198 ms 148344 KB Output is correct
4 Correct 190 ms 148728 KB Output is correct
5 Correct 240 ms 173436 KB Output is correct
6 Correct 245 ms 174584 KB Output is correct
7 Correct 94 ms 100216 KB Output is correct
8 Correct 150 ms 132684 KB Output is correct
9 Correct 147 ms 133496 KB Output is correct
10 Correct 125 ms 128888 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 95992 KB Output is correct
2 Correct 76 ms 95608 KB Output is correct
3 Correct 79 ms 95864 KB Output is correct
4 Correct 71 ms 95480 KB Output is correct
5 Correct 75 ms 95480 KB Output is correct
6 Correct 78 ms 95736 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 94456 KB Output is correct
2 Correct 57 ms 94456 KB Output is correct
3 Correct 57 ms 94456 KB Output is correct
4 Correct 58 ms 94456 KB Output is correct
5 Correct 57 ms 94456 KB Output is correct
6 Correct 60 ms 94456 KB Output is correct
7 Correct 57 ms 94456 KB Output is correct
8 Correct 159 ms 156536 KB Output is correct
9 Correct 162 ms 158840 KB Output is correct
10 Correct 198 ms 148344 KB Output is correct
11 Correct 190 ms 148728 KB Output is correct
12 Correct 240 ms 173436 KB Output is correct
13 Correct 245 ms 174584 KB Output is correct
14 Correct 94 ms 100216 KB Output is correct
15 Correct 150 ms 132684 KB Output is correct
16 Correct 147 ms 133496 KB Output is correct
17 Correct 125 ms 128888 KB Output is correct
18 Correct 79 ms 95992 KB Output is correct
19 Correct 76 ms 95608 KB Output is correct
20 Correct 79 ms 95864 KB Output is correct
21 Correct 71 ms 95480 KB Output is correct
22 Correct 75 ms 95480 KB Output is correct
23 Correct 78 ms 95736 KB Output is correct
24 Correct 163 ms 155640 KB Output is correct
25 Correct 174 ms 156536 KB Output is correct
26 Correct 154 ms 154744 KB Output is correct
27 Correct 181 ms 142584 KB Output is correct
28 Correct 160 ms 109560 KB Output is correct
29 Correct 117 ms 100728 KB Output is correct