Pagini recente » Cod sursa (job #2633527) | Cod sursa (job #883835) | Cod sursa (job #2831895) | Cod sursa (job #1074026) | Cod sursa (job #2871614)
#include <vector>
#include <fstream>
#define mod 10007
#define prim 3
using namespace std;
ifstream f("abc2.in");
ofstream g("abc2.out");
unsigned int hash1,hashm,p=1,poz;
int sa,sb,i;
string s,d;
vector<unsigned int> v[mod];
bool searchh(unsigned int h)
{
unsigned p=v[h%mod].size();
for(int i=0;i<p;i++)
{
if(v[h%mod][i]==h) return true;
}
return false;
}
int main()
{
f>>s;
sa=s.size();
while(f>>d)
{
sb=d.size();
hash1=0;
for(i=0; i<sb; i++)
{
hash1=hash1*prim+d[i]-'a';
}
if(!searchh(hash1))
{
v[hash1%mod].push_back(hash1);
}
}
for(i=0;i<sb;i++)
{
hashm=(hashm*prim)+s[i]-'a';
if(i>0)
{
p=p*prim;
}
}
if(searchh(hashm)) poz++;
for(i=sb;i<sa;i++)
{
hashm=((prim*(hashm-(((s[i-sb]-'a')*p))))+s[i]-'a');
if(searchh(hashm)) poz++;
}
g<<poz;
return 0;
}