/**
* author: Duarte Nobrega
* created: 28.05.2020
**/
#include <bits/stdc++.h>
using namespace std;
struct Node {
Node *abc[26] = {nullptr};
int sub = 0;
bool is_word = false;
} *root, *cur;
void inserir (const string &w) {
cur = root;
for (int i = 0; i < (int) w.size(); i++) {
if (cur -> abc[w[i] - 'a'] == nullptr) {
cur -> abc[w[i] - 'a'] = new Node;
}
cur = cur -> abc[w[i] - 'a'];
}
cur -> is_word = true;
}
vector<char> ans;
void dfs (Node *current) {
if (current -> is_word) ans.emplace_back('P');
vector< pair<int, int> > ordem;
for (int i = 0; i < 26; i++) {
if (current -> abc[i] != nullptr) {
ordem.emplace_back( current -> abc[i] -> sub, i );
}
}
sort (ordem.begin(), ordem.end());
for (auto to : ordem) {
ans.emplace_back(char ('a' + to.second));
dfs (current -> abc[to.second]);
}
ans.emplace_back('-');
}
int get_size (Node *current) {
int res = 0;
for (int i = 0; i < 26; i++) {
if (current -> abc[i] != nullptr) {
res = max (res, get_size (current -> abc[i]));
}
}
return current -> sub = res + 1;
}
int main () {
ios::sync_with_stdio(0);
cin.tie(0);
root = new Node;
int n;
cin >> n;
for (int i = 0; i < n; i++) {
string w;
cin >> w;
inserir (w);
}
get_size (root);
dfs (root);
while (ans.back() == '-') ans.pop_back();
cout << (int) ans.size() << '\n';
for (auto to : ans) cout << to << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
416 KB |
Output is correct |
2 |
Correct |
6 ms |
1152 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
1920 KB |
Output is correct |
2 |
Correct |
8 ms |
2304 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
15 ms |
6016 KB |
Output is correct |
2 |
Correct |
32 ms |
12664 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
14712 KB |
Output is correct |
2 |
Correct |
14 ms |
3456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
81 ms |
36468 KB |
Output is correct |
2 |
Correct |
173 ms |
83432 KB |
Output is correct |
3 |
Correct |
89 ms |
42864 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
69 ms |
28660 KB |
Output is correct |
2 |
Correct |
199 ms |
99696 KB |
Output is correct |
3 |
Correct |
100 ms |
49140 KB |
Output is correct |
4 |
Correct |
172 ms |
94188 KB |
Output is correct |