// Problem: Type Printer
// Contest: Virtual Judge - OJUZ
// URL: https://vjudge.net/problem/OJUZ-IOI08_printer
// Memory Limit: 256 MB
// Time Limit: 1000 ms
//
// Powered by CP Editor (https://cpeditor.org)
#include<bits/stdc++.h>
using namespace std;
const int N=1e6+1;
int n,trie[N][30],tot=1;
bool sum[N],flag[N],last=0;
string s,ll,ans;
void insert(const string &a){
int p=1;
int len=a.size();
for(int i=0;i<len;i++){
int ch=a[i]-'a';
if(!trie[p][ch]) trie[p][ch]=++tot;
p=trie[p][ch];
}
sum[p]=true;
return;
}
void Mark(const string& a){
int p=1;
int len=a.size();
for(int i=0;i<len;i++){
int ch=a[i]-'a';
p=trie[p][ch];
flag[p]=true;
}
return;
}
void dfs(int now){
if(sum[now]) ans+='P';
int x=-1;
for(int i=0;i<26;i++){
int t=trie[now][i];
if(!t) continue;
if(flag[t]) x=i;
else{
ans+=(i+'a');
dfs(t);
}
}
if(x!=-1){
ans+=(x+'a');
dfs(trie[now][x]);
}
if(flag[now] && x==-1) last=1;
if(!last) ans+='-';
return;
}
int main(){
ios::sync_with_stdio(false),cin.tie(0);
cin>>n;
for(int i=1;i<=n;i++){
cin>>s;
insert(s);
if(ll.size()<s.size()) ll=s;
}
Mark(ll);
dfs(1);
int len=ans.size();
cout<<len<<"\n";
for(int i=0;i<len;i++) cout<<ans[i]<<"\n";
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
860 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1116 KB |
Output is correct |
2 |
Correct |
2 ms |
1372 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
3420 KB |
Output is correct |
2 |
Correct |
9 ms |
7260 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
8428 KB |
Output is correct |
2 |
Correct |
5 ms |
2136 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
30 ms |
20464 KB |
Output is correct |
2 |
Correct |
64 ms |
46352 KB |
Output is correct |
3 |
Correct |
35 ms |
24048 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
24 ms |
16112 KB |
Output is correct |
2 |
Correct |
77 ms |
55052 KB |
Output is correct |
3 |
Correct |
39 ms |
27124 KB |
Output is correct |
4 |
Correct |
65 ms |
52076 KB |
Output is correct |