#include <bits/stdc++.h>
using namespace std;
const int mxS=3e6+1;
int n, m=1, c[mxS][26], dp[mxS], ans;
string s;
bool a[mxS];
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> n;
while(n--) {
cin >> s;
int u=0;
for(int i=s.size()-1; i>=0; u=c[u][s[i]-'a'], --i)
if(!c[u][s[i]-'a'])
c[u][s[i]-'a']=m++;
a[u]=1;
}
while(m--) {
int nc=0;
for(int i=0; i<26; ++i)
nc+=a[c[m][i]];
dp[m]=a[m];
for(int i=0; i<26; ++i) {
if(!a[c[m][i]])
continue;
ans=max(dp[c[m][i]]+dp[m]+nc-2, ans);
dp[m]=max(dp[c[m][i]]+a[m], dp[m]);
}
dp[m]=max(a[m]+nc, dp[m]+nc-1);
ans=max(dp[m], ans);
}
cout << ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
228 ms |
68472 KB |
Output is correct |
5 |
Correct |
26 ms |
3448 KB |
Output is correct |
6 |
Correct |
51 ms |
33292 KB |
Output is correct |
7 |
Correct |
51 ms |
33188 KB |
Output is correct |
8 |
Correct |
52 ms |
33116 KB |
Output is correct |
9 |
Correct |
69 ms |
36968 KB |
Output is correct |
10 |
Correct |
50 ms |
33020 KB |
Output is correct |