#include <bits/stdc++.h>
#define int long long
using namespace std;
int trie[500002][26], d[500002], mx[500002], id=0, end_[500002];
constexpr int ROOT = 0;
vector<char> ans;
void dfs(int depth = 0, int cur = ROOT) {
d[cur] = depth;
mx[cur] = d[cur];
for (int i = 0; i < 26; i++) {
if (!trie[cur][i])
continue;
dfs(depth + 1, trie[cur][i]);
mx[cur] = max(mx[cur], mx[trie[cur][i]]);
}
}
void dfs_ans(int cur = ROOT) {
if (end_[cur])
ans.push_back('P');
for (int c = 0; c < 26; c++) {
if (!trie[cur][c] || mx[cur] == mx[trie[cur][c]])
continue;
ans.push_back('a' + c);
dfs_ans(trie[cur][c]);
}
for (int c = 0; c < 26; c++) {
if (!trie[cur][c] || mx[cur] != mx[trie[cur][c]])
continue;
ans.push_back('a' + c);
dfs_ans(trie[cur][c]);
}
ans.push_back('-');
}
void add_string(string const & s) {
int cur = ROOT;
for (auto & c : s) {
int x = c - 'a';
if (trie[cur][x]) {
cur = trie[cur][x];
} else {
cur = trie[cur][x] = ++id;
}
}
end_[cur] = 1;
}
signed main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
int n; cin >> n;
string s;
for (int i = 0; i < n; i++)
cin >> s, add_string(s);
dfs(); dfs_ans();
while(ans.back() != 'P')
ans.pop_back();
cout << (int) ans.size() << '\n';
for (int i = 0; i < (int) ans.size(); i++)
cout << ans[i] << ' ';
cout << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2640 KB |
Line "t p t t t y k d u y v x j b z h q u p P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2384 KB |
Line "e e j z a t j m n q x c t n P ... y o s s k u g b k i u f f d P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2384 KB |
Line "h j x g q k P - - - - - - i u ... l m w f i r l g b d e v j d P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2384 KB |
Line "b h v d x r p t h a P - - - - ... m s g e n n p d l u r n m v P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2640 KB |
Line "a e d P - - b b b l a u q k f ... - - e y n o r w r b i z a i P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
4 ms |
4064 KB |
Line "a P a i s x l h a g q b j w b ... v i w g d u d c y b a h u w P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
10 ms |
10064 KB |
Line "a P a c a o P - - - i z j p f ... n i c j t u k m w m l d d z P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
24 ms |
20428 KB |
Line "a P a d m e P - - - e j u i x ... k w z a k q u b h s t c d q P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
60 ms |
42648 KB |
Line "a P c P a l g m y p z w e h p ... h i h q z w z o m l n c z u P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
53 ms |
35528 KB |
Line "a P a P c h f a P - - - s p c ... P - - - j t e a r n h d j e P " doesn't correspond to pattern "[a-z\-P]{1}" |
2 |
Halted |
0 ms |
0 KB |
- |