#include <bits/stdc++.h>
using namespace std;
#define ll long long int
#define sz(x) (int) x.size()
#define pb push_back
const int mxN = 1e5+5;
const int mC = 2e6+5;
int n;
int v[mC];
vector<int> idxs[mC];
vector<int> adj[mC];
int cnt = 0;
int dfs(int node, int l, int r, int idx, string &s){
if (idx == 0){
return lower_bound(idxs[node].begin(), idxs[node].end(),r) - lower_bound(idxs[node].begin(),idxs[node].end(),l);
}
for (int i : adj[node]){
if (v[i] == s[idx-1]-'A') return dfs(i,l,r,idx-1,s);
}
return 0;
}
void add(int node, int cidx, int idx, string &s){
idxs[node].pb(cidx);
if (idx == 0) return;
for (int i : adj[node]){
if (v[i] == s[idx-1]-'A') return add(i,cidx,idx-1,s);
}
v[cnt] = s[idx-1] - 'A';
adj[node].pb(cnt);
cnt++;
return add(cnt-1,cidx,idx-1,s);
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int m;
cin >> n >> m;
vector<string> all(n);
for (int i = 0; i < n; i++) cin >> all[i];
sort(all.begin(),all.end());
string temp;
v[0] = 1;
cnt++;
for (int i = 0; i < n; i++){
temp = all[i]+'B';
add(0,i,sz(temp)-1,temp);
}
int l,r;
string a,b;
for (int i = 0; i < m; i++){
cin >> a >> b;
l = lower_bound(all.begin(),all.end(), a) - all.begin();
r = lower_bound(all.begin(),all.end(), a+'Z') - all.begin();
temp = b + 'B';
cout << dfs(0,l,r,sz(temp)-1,temp) << '\n';
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
94288 KB |
Output is correct |
2 |
Correct |
44 ms |
94296 KB |
Output is correct |
3 |
Correct |
38 ms |
94300 KB |
Output is correct |
4 |
Correct |
42 ms |
94292 KB |
Output is correct |
5 |
Correct |
39 ms |
94296 KB |
Output is correct |
6 |
Correct |
40 ms |
94292 KB |
Output is correct |
7 |
Correct |
40 ms |
94300 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
198 ms |
229212 KB |
Output is correct |
2 |
Correct |
227 ms |
224576 KB |
Output is correct |
3 |
Correct |
111 ms |
112208 KB |
Output is correct |
4 |
Correct |
108 ms |
112220 KB |
Output is correct |
5 |
Correct |
163 ms |
179768 KB |
Output is correct |
6 |
Correct |
158 ms |
180564 KB |
Output is correct |
7 |
Correct |
89 ms |
110420 KB |
Output is correct |
8 |
Correct |
183 ms |
155476 KB |
Output is correct |
9 |
Correct |
161 ms |
147792 KB |
Output is correct |
10 |
Correct |
130 ms |
143892 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
65 ms |
96976 KB |
Output is correct |
2 |
Correct |
62 ms |
96084 KB |
Output is correct |
3 |
Correct |
61 ms |
96460 KB |
Output is correct |
4 |
Correct |
57 ms |
96208 KB |
Output is correct |
5 |
Correct |
60 ms |
96092 KB |
Output is correct |
6 |
Correct |
62 ms |
96460 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
94288 KB |
Output is correct |
2 |
Correct |
44 ms |
94296 KB |
Output is correct |
3 |
Correct |
38 ms |
94300 KB |
Output is correct |
4 |
Correct |
42 ms |
94292 KB |
Output is correct |
5 |
Correct |
39 ms |
94296 KB |
Output is correct |
6 |
Correct |
40 ms |
94292 KB |
Output is correct |
7 |
Correct |
40 ms |
94300 KB |
Output is correct |
8 |
Correct |
198 ms |
229212 KB |
Output is correct |
9 |
Correct |
227 ms |
224576 KB |
Output is correct |
10 |
Correct |
111 ms |
112208 KB |
Output is correct |
11 |
Correct |
108 ms |
112220 KB |
Output is correct |
12 |
Correct |
163 ms |
179768 KB |
Output is correct |
13 |
Correct |
158 ms |
180564 KB |
Output is correct |
14 |
Correct |
89 ms |
110420 KB |
Output is correct |
15 |
Correct |
183 ms |
155476 KB |
Output is correct |
16 |
Correct |
161 ms |
147792 KB |
Output is correct |
17 |
Correct |
130 ms |
143892 KB |
Output is correct |
18 |
Correct |
65 ms |
96976 KB |
Output is correct |
19 |
Correct |
62 ms |
96084 KB |
Output is correct |
20 |
Correct |
61 ms |
96460 KB |
Output is correct |
21 |
Correct |
57 ms |
96208 KB |
Output is correct |
22 |
Correct |
60 ms |
96092 KB |
Output is correct |
23 |
Correct |
62 ms |
96460 KB |
Output is correct |
24 |
Correct |
250 ms |
207652 KB |
Output is correct |
25 |
Correct |
252 ms |
207820 KB |
Output is correct |
26 |
Correct |
223 ms |
206160 KB |
Output is correct |
27 |
Correct |
114 ms |
111372 KB |
Output is correct |
28 |
Correct |
190 ms |
127060 KB |
Output is correct |
29 |
Correct |
114 ms |
106308 KB |
Output is correct |