Cod sursa(job #1653218)

Utilizator valentin50517Vozian Valentin valentin50517 Data 15 martie 2016 20:08:23
Problema Prefix Scor 90
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.64 kb
#include <bits/stdc++.h>

using namespace std;
ifstream fin("prefix.in");
ofstream fout("prefix.out");

char S[1000100];
int p[1000100];
int T,rs;

int main(){
	ios::sync_with_stdio(0);
	fin.tie(0);
	(fin >> T).ignore(1);
	while(T--){
		fin.getline(S+1,1000100);
		int i,k,l,n;
		l = k = rs = n = p[1] = 0;
		for(i = 2;S[i];i++){
			while(k && S[k+1] != S[i]) 
				k = p[k];
			if(S[k+1] == S[i]) k++;
			p[i] = k;
			
			if(k && i-k == l) n++;
			else
			if(k && i-k > l) l = i-k, n = 1;
			else n = 0;
			if(n && n >= l) rs = l*(n/l+1);
			//fout << S[i] << ' ' << k << ' ' << l << ' ' << n << ' ' << rs << '\n';
		}
		fout << rs << "\n"; 
	}
		
}