#include "bits/stdc++.h"
using namespace std;
const int maxn = 1000005;
string s[maxn];
int t[maxn][26], ed[maxn], cnt[maxn];
int node = 0;
int par[maxn];
void insert(string s){
int cur = 0;
for(auto c : s){
if(!t[cur][c - 'a']){
t[cur][c - 'a'] = ++node;
}
par[t[cur][c - 'a']] = cur;
cur = t[cur][c - 'a'];
}
ed[cur] = 1;
}
vector<char> v;
void get(int cur){
cnt[cur] = 1;
for(int i = 0; i < 26; ++i){
if(t[cur][i]){
get(t[cur][i]);
cnt[cur] = max(cnt[cur], cnt[t[cur][i]] + 1);
}
}
}
void dfs(int cur){
if(ed[cur]){
v.push_back('P');
return;
}
vector<pair<int, int>> vv;
for(int i = 0; i < 26; ++i){
if(t[cur][i]){
vv.push_back(make_pair(cnt[t[cur][i]], i));
}
}
sort(vv.begin(), vv.end());
for(auto i : vv){
v.push_back((char)(i.second + 'a'));
dfs(t[cur][i.second]);
v.push_back('-');
}
}
int main(int argc, char const *argv[])
{
// freopen("in.txt", "r", stdin);
int n;
cin >> n;
memset(par, -1, sizeof par);
for(int i = 0; i < n; ++i){
cin >> s[i];
insert(s[i]);
}
get(0);
dfs(0);
while(v.back() == '-')v.pop_back();
cout << v.size() << endl;
for(auto i : v){
cout << i << endl;
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
23 ms |
35584 KB |
Output is correct |
2 |
Correct |
23 ms |
35584 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
24 ms |
35584 KB |
Output is correct |
2 |
Correct |
23 ms |
35584 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
23 ms |
35584 KB |
didn't print every word |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
24 ms |
35584 KB |
Output is correct |
2 |
Incorrect |
23 ms |
35620 KB |
didn't print every word |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
29 ms |
35704 KB |
didn't print every word |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
28 ms |
36352 KB |
didn't print every word |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
27 ms |
38272 KB |
didn't print every word |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
38 ms |
42564 KB |
didn't print every word |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
63 ms |
53496 KB |
didn't print every word |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
53 ms |
49152 KB |
didn't print every word |
2 |
Halted |
0 ms |
0 KB |
- |