Cod sursa(job #1653258)

Utilizator valentin50517Vozian Valentin valentin50517 Data 15 martie 2016 20:33:02
Problema Prefix Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.65 kb
#include <cstdio>
#include <cstring>
using namespace std;
 
FILE *fin = freopen("prefix.in","r",stdin);
FILE *fout = freopen("prefix.out","w",stdout);

char S[1000010];
int p[1000010],T,rs,i,k,l,n,N;
int main(){
	  scanf("%d\n", &T);
	while(T--){
		gets(S + 1);
        N = strlen(S + 1);
		l = k = rs = n = p[1] = 0;
		for(i = 2;i<=N;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';
		}
		printf("%d\n", i); 
	}
		
}