Cod sursa(job #519867)

Utilizator S7012MYPetru Trimbitas S7012MY Data 6 ianuarie 2011 18:35:38
Problema Abc2 Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.87 kb
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <set>
#define DL 10000005
#define DN 20
#define DB 50005
#define ui unsigned int
using namespace std;

char s[DL],cuv[DN];
int n,m,nrc;
ui v[DB];
set<ui> se;
typedef set<ui>::iterator it;

int main() {
	freopen("abc2.in", "r", stdin);
	freopen("abc2.out", "w", stdout);
	fgets(s, DL, stdin);
	n=strlen(s)-1;
	while (fgets(cuv, DN, stdin)) {
		m=strlen(cuv)-1;
		ui cod=0;
		for(int i=0; i<m; ++i)
			cod=cod*3+cuv[i]-'a';
		v[++nrc] = cod;
		se.insert(cod);
	}
	ui cod=0,pow = 1,sol=0;
	for (int i=1;i<m; ++i) pow *= 3;

	for (int i=0; i<m; ++i)
		cod = cod*3 + s[i]-'a';
    it c=se.find(cod);
    //int gasit=lower_bound(v+1,v+nrc+1,cod)-v;
	if(c!=se.end()) ++sol;

	for(int i=m; i<n; ++i) {
		cod-=pow*(s[i-m]-'a');
		cod=cod*3+s[i]-'a';
        c=se.find(cod);
        if(c!=se.end()) ++sol;
	}
	printf("%d\n", sol);
}