#include<bits/stdc++.h>
using namespace std;
#define endl "\n"
const int lmt=1e6;
int adj[lmt][26];
char s[lmt];//string s;
vector<char>ans;
int indx=1;
bool linend[lmt];
int depth[lmt];
void insert()
{
int now=1;
int sz=strlen(s);
for(int i=0;i<sz;i++)
{
int num=s[i]-'a';
if(!adj[now][num])
{
indx++;
adj[now][num]=indx;
}
now=adj[now][num];
}
linend[now]=1;
}
void getdepth(int now)
{
depth[now]=1;
for(int i=0;i<26;i++)
{
if(adj[now][i])
{
getdepth(adj[now][i]);
depth[now]=max(depth[now],depth[adj[now][i]]+1);
}
}
}
void dfs(int now)
{
int sz=0;
vector<pair<int,int>>p;
if(linend[now])
{
linend[now]=0;
ans.push_back('P');
}
for(int i=0;i<26;i++)
{
if(adj[now][i])
{
p.push_back(make_pair(depth[adj[now][i]],i));
sz++;
}
}
sort(p.begin(),p.end());
for(int i=0;i<sz;i++)
{
char c='a'+p[i].second;
ans.push_back(c);
dfs(adj[now][p[i].second]);
ans.push_back('-');
}
}
int main()
{
//#ifndef ONLINE_JUDGE
// freopen("take.in","r",stdin);
// freopen("give.out","w",stdout);
//#endif
int n;
cin>>n;
for(int i=0;i<n;i++)
{
cin>>s;
insert();
}
getdepth(1);
dfs(1);
int sz=ans.size();
while(ans[sz-1]=='-') sz--;
cout<<sz<<endl;
for(int i=0;i<sz;i++) cout<<ans[i]<<endl;
}
# |
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 |
4 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 |
5 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 |
6 ms |
768 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
1152 KB |
Output is correct |
2 |
Correct |
9 ms |
1280 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
16 ms |
3200 KB |
Output is correct |
2 |
Correct |
28 ms |
6528 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
36 ms |
7676 KB |
Output is correct |
2 |
Correct |
19 ms |
1920 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
84 ms |
18544 KB |
Output is correct |
2 |
Correct |
159 ms |
42084 KB |
Output is correct |
3 |
Correct |
96 ms |
21748 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
68 ms |
14576 KB |
Output is correct |
2 |
Correct |
195 ms |
49896 KB |
Output is correct |
3 |
Correct |
108 ms |
24560 KB |
Output is correct |
4 |
Correct |
171 ms |
47084 KB |
Output is correct |