#include<bits/stdc++.h>
using namespace std ;
const int N = 1e5 + 7 ;
int n ;
int dp[N] ;
int ans ;
string ss[N] ;
bool katch(int i , int j){
if( abs( (int) ss[i].size() - (int) ss[j].size()) > 1 ) return 0 ;
string s1 = ss[i] .substr(0 , ss[j].size() -1 ) ;
string s2 = ss[j] .substr(0 , ss[j].size()-1) ;
return (s1 == s2) ;
}
bool match(int i , int j){
return katch(i , j ) ;
}
int main(){
ios_base::sync_with_stdio(0) ;
cin.tie(0) ;
cin>>n ;
for(int i = 0 ; i < n ;i++){
cin>>ss[i] ;
reverse( ss[i] .begin() , ss[i].end()) ;
}
sort(ss , ss + n) ;
for(int i = 0 ;i < n ;i++){
dp[i] = 1 ;
for(int j = 0 ; j < i ; j++){
if(match(j , i)){
dp[i] = max(dp[i] , dp[j]+1) ;
}
}
ans = max(ans , dp[i]) ;
}
cout<< ans ;
return 0 ;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
6 ms |
3456 KB |
Output isn't correct |
2 |
Correct |
7 ms |
3456 KB |
Output is correct |
3 |
Incorrect |
6 ms |
3456 KB |
Output isn't correct |
4 |
Runtime error |
19 ms |
7680 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
5 |
Correct |
28 ms |
9344 KB |
Output is correct |
6 |
Incorrect |
29 ms |
4760 KB |
Output isn't correct |
7 |
Incorrect |
20 ms |
4516 KB |
Output isn't correct |
8 |
Incorrect |
15 ms |
4444 KB |
Output isn't correct |
9 |
Incorrect |
815 ms |
10072 KB |
Output isn't correct |
10 |
Incorrect |
14 ms |
4548 KB |
Output isn't correct |