Cod sursa(job #106273)

Utilizator peanutzAndrei Homorodean peanutz Data 18 noiembrie 2007 15:25:13
Problema Abc2 Scor 0
Compilator cpp Status done
Runda Happy Coding 2007 Marime 1.47 kb
#include <stdio.h>
#include <vector>
#include <set>
#include <bitset>

using namespace std;

#define NMAX 1000010
#define MOD 1000000
#define MOD1 999997
#define MOD2 893923
#define MOD3 783917
#define MOD4 512313
#define MOD5 326931
#define MOD6 291237
#define MOD7 197173

bitset<MOD> h1, h2, h3, h4, h5, h6, h7;

#define ins(x) (h1[(x)%MOD1] = h2[(x)%MOD2] = h3[(x)%MOD3] = h4[(x)%MOD4] = h5[(x)%MOD5] = h6[(x)%MOD6] = h7[(x)%MOD7] = 1)
#define is(x) (h1[(x)] && h2[(x)] && h3[(x)] && h4[(x)] && h5[(x)] && h6[(x)] && h7[(x)])


inline long long f(int n)
{
	if(n == 0) return 1;
	long long p = 1;
	for(int i = 1; i < n; ++i)
		p = (long long)p * 3;
	return p;
}

char s[NMAX], c[21];
int n;
long long res;

void read()
{
	scanf("%s", c);
	if(!n)
		n = strlen(c);
	long long x = 0;
	for(int i = 0; i < n; ++i)
		x = (long long)x*3 + (c[i]-'a');
    h1[x%MOD1] = h2[x%MOD2] = h3[x%MOD3] = h4[x%MOD4] = h5[x%MOD5] = h6[x%MOD6] = h7[x%MOD7] = 1;
}

int main()
{
	freopen("abc2.in", "r", stdin);
	freopen("abc2.out", "w", stdout);

	scanf("%s", s);
	while(!feof(stdin))
		read();
	long long t = 0, p = f(n);
	for(int i = 0; i < n; ++i)
		t = (long long)t*3 + (s[i]-'a');

	vector<long long> :: iterator it, _end;
	long long until = strlen(s)-n, aux;
	for(int i = 0; i <= until; ++i)
	{
		res += is(t);

       		t = (long long)t - p*(s[i]-'a');
       		t = (long long)t*3 + (s[i+n]-'a');
	}
	printf("%lld\n", res);
	return 0;
}