/// You just can't beat the person who never gives up
/// ICPC next year
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include<bits/stdc++.h>
using namespace std ;
const int N = 3e6+5 ;
int n ,m ,sz ;
map<int,int> to[N] ;
char str[N] ;
bool en[N] ;
void insert_str(){
int cur = 0 ;
for(int i=0;i<m;++i){
int cc = str[i] - 'a' ;
if(!to[cur][cc]) to[cur][cc] = ++sz ;
cur = to[cur][cc] ;
}
en[cur] = 1 ;
}
int mem[N][2] ;
int dfs(int cur,bool is){
int&ret = mem[cur][is];
if(~ret) return ret;
ret = 0 ;
if(!is){
for(int i=0;i<26;++i) if(to[cur][i]) ret = max(ret ,dfs(to[cur][i],0)) ;
}
int here = 0 ;
for(int i=0;i<26;++i) if(to[cur][i]) here += en[to[cur][i]] ;
if(!here) return ret ;
ret = max(ret,here) ;
for(int i=0;i<26;++i) if(to[cur][i] && en[to[cur][i]]) ret = max(ret ,here + dfs(to[cur][i],1)) ;
return ret ;
}
int main(){
scanf("%d",&n);
for(int i=0;i<n;++i){
scanf("%s",str);
m = strlen(str) ;
reverse(str,str+m);
insert_str();
}
memset(mem,-1,sizeof mem);
printf("%d",dfs(0,0));
return 0;
}
Compilation message
rima.cpp: In function 'int main()':
rima.cpp:42:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&n);
~~~~~^~~~~~~~~
rima.cpp:44:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%s",str);
~~~~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
102 ms |
165112 KB |
Output is correct |
| 2 |
Correct |
96 ms |
165072 KB |
Output is correct |
| 3 |
Correct |
96 ms |
165112 KB |
Output is correct |
| 4 |
Runtime error |
835 ms |
262148 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 5 |
Correct |
144 ms |
168056 KB |
Output is correct |
| 6 |
Runtime error |
247 ms |
262148 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 7 |
Runtime error |
243 ms |
262148 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 8 |
Runtime error |
240 ms |
262148 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 9 |
Runtime error |
308 ms |
262148 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 10 |
Runtime error |
235 ms |
262148 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
