#include <bits/stdc++.h>
using namespace std;
struct Trie{
int cnt,ed,ored ;
Trie *a[29];
Trie(){
cnt = 0;
ed=0;
ored=0;
for(int i=0;i<29;i++)
a[i] = 0;
}
};
void insert(Trie *node,int pos,string s){
node->cnt++;
if(pos == s.size())
return ;
int num = s[pos]-'a';
if(node->a[num] == 0)
node->a[num] = new Trie();
insert(node->a[num],pos+1,s);
if(pos == s.size()-1)
{
node->ored++;
node->ed++;
}
}
int ret=0;
void query(Trie *node,int pos,string s){
if(pos == s.size())
return;
int num = s[pos]-'a';
if(node->a[num] == 0)
return;
ret+=node->ed;
node->ed=0;
query(node->a[num],pos+1,s);
}
void rb(Trie *node,int pos,string s){
if(pos == s.size())
return;
int num = s[pos]-'a';
if(node->a[num] == 0)
return;
node->ed=node->ored;
rb(node->a[num],pos+1,s);
}
Trie *root = new Trie();
bool cmp(string a,string b)
{
if(a.size()<b.size())return true;
return false;
}
int n;
string s[200009];
int main()
{
cin>>n;
for(int i=0;i<n;i++)cin>>s[i];
//
// cout<<query(root,0,a);
sort(s,s+n,cmp);
int ans=0,sum=0,s2;
for(int i=0;i<n;i++)
{
sum=1;
while(s[i]==s[i+1])
{
sum++;
i++;
}
//cout<<sum<<"\n";
ans+=(sum-1)*sum;
int ls=s[i].size();
s2=0;
for(int j=0;j<s[i].size();j++)
{
ret=0;
query(root,0,s[i].substr(j,ls));
s2+=ret;
}
for(int j=0;j<s[i].size();j++)
{
ret=0;
rb(root,0,s[i].substr(j,ls));
s2+=ret;
}
ans+=s2*(sum);
for(int j=0;j<sum;j++)insert(root,0,s[i]);
}
cout<<ans;
}
Compilation message
lozinke.cpp: In function 'void insert(Trie*, int, std::__cxx11::string)':
lozinke.cpp:22:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(pos == s.size())
~~~~^~~~~~~~~~~
lozinke.cpp:30:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(pos == s.size()-1)
~~~~^~~~~~~~~~~~~
lozinke.cpp: In function 'void query(Trie*, int, std::__cxx11::string)':
lozinke.cpp:39:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(pos == s.size())
~~~~^~~~~~~~~~~
lozinke.cpp: In function 'void rb(Trie*, int, std::__cxx11::string)':
lozinke.cpp:50:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(pos == s.size())
~~~~^~~~~~~~~~~
lozinke.cpp: In function 'int main()':
lozinke.cpp:87:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<s[i].size();j++)
~^~~~~~~~~~~~
lozinke.cpp:93:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<s[i].size();j++)
~^~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
7 ms |
6520 KB |
Output isn't correct |
2 |
Incorrect |
9 ms |
6648 KB |
Output isn't correct |
3 |
Incorrect |
8 ms |
6648 KB |
Output isn't correct |
4 |
Incorrect |
8 ms |
6648 KB |
Output isn't correct |
5 |
Incorrect |
10 ms |
7160 KB |
Output isn't correct |
6 |
Incorrect |
14 ms |
7288 KB |
Output isn't correct |
7 |
Incorrect |
12 ms |
8056 KB |
Output isn't correct |
8 |
Incorrect |
13 ms |
8568 KB |
Output isn't correct |
9 |
Incorrect |
28 ms |
10104 KB |
Output isn't correct |
10 |
Incorrect |
36 ms |
14712 KB |
Output isn't correct |
11 |
Incorrect |
39 ms |
12664 KB |
Output isn't correct |
12 |
Incorrect |
56 ms |
22520 KB |
Output isn't correct |
13 |
Incorrect |
61 ms |
11384 KB |
Output isn't correct |
14 |
Incorrect |
66 ms |
23076 KB |
Output isn't correct |
15 |
Incorrect |
66 ms |
23900 KB |
Output isn't correct |
16 |
Incorrect |
67 ms |
7164 KB |
Output isn't correct |
17 |
Correct |
32 ms |
6620 KB |
Output is correct |
18 |
Correct |
31 ms |
6520 KB |
Output is correct |
19 |
Incorrect |
57 ms |
17052 KB |
Output isn't correct |
20 |
Incorrect |
50 ms |
7032 KB |
Output isn't correct |