#include <bits/stdc++.h>
#define N 500005
using namespace std;
string s[N];
unordered_map<string,int> mp;
unordered_map<string,int> mp2;
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
//freopen("in.txt","r",stdin);
//freopen("out.txt","w",stdout);
int n;
cin >> n;
for(int i=0;i<n;i++){
cin >> s[i];
string t = s[i];
reverse(t.begin(), t.end());
mp[t]++;
t.pop_back();
mp2[t]++;
}
int ans = 0;
for(int i=0;i<n;i++){
string c = s[i];
reverse(c.begin(), c.end());
string t = c;
c.pop_back();
int sum = 0;
while(t.size()){
sum += mp2[c];
c.pop_back();
t.pop_back();
if(!mp[t]){
break;
}
}
ans = max(ans,sum);
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
15980 KB |
Output is correct |
2 |
Correct |
11 ms |
15980 KB |
Output is correct |
3 |
Correct |
11 ms |
15980 KB |
Output is correct |
4 |
Execution timed out |
1102 ms |
77092 KB |
Time limit exceeded |
5 |
Correct |
447 ms |
25324 KB |
Output is correct |
6 |
Incorrect |
21 ms |
18652 KB |
Output isn't correct |
7 |
Incorrect |
19 ms |
18408 KB |
Output isn't correct |
8 |
Incorrect |
19 ms |
18368 KB |
Output isn't correct |
9 |
Incorrect |
100 ms |
26144 KB |
Output isn't correct |
10 |
Incorrect |
19 ms |
18252 KB |
Output isn't correct |