Cod sursa(job #3253051)
| Utilizator | Data | 1 noiembrie 2024 08:10:17 | |
|---|---|---|---|
| Problema | Prefix | Scor | 100 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva de probleme | Marime | 0.63 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream f("prefix.in");
ofstream g("prefix.out");
char s[1000005];
int n, ct = 0;
void solve()
{
f >> s;
n = strlen(s);
int ps[n + 5] = {0}, ct[n + 5] = {0}, maxx = 0;
for(int i = 1; i < n; i ++)
{
int j = ps[i - 1];
while(j > 0 && s[i] != s[j])
j = ps[j - 1];
if(s[i] == s[j])
j ++;
ps[i] = j;
if(j != 0 && (i + 1) % (i - j + 1) == 0)
maxx = i + 1;
}
g << maxx << "\n";
}
int main()
{
int t;
f >> t;
while(t --)
solve();
return 0;
}
