Cod sursa(job #98580)

Utilizator VmanDuta Vlad Vman Data 10 noiembrie 2007 14:43:24
Problema Abc2 Scor 0
Compilator cpp Status done
Runda Happy Coding 2007 Marime 1.45 kb
using namespace std;

#include <stdio.h>
#include <string.h>
#include <vector>

#define Lmax 10000002
#define Lcmax 22
//#define Dim 8388607
#define Dim 262143

char s[Lmax],c[Lcmax];
vector<long long> h[Dim+1];
vector<long long>::iterator it;
int L,Lc,tot,i;
long long nr,Nrmax;

int main()
{
 freopen("abc2.in","r",stdin);
 freopen("abc2.out","w",stdout);
 scanf("%s\n",&s);
 L=strlen(s);
 scanf("%s\n",&c);
 Lc=strlen(c);
 Nrmax=(1<<Lc);
 Nrmax=Nrmax*Nrmax-1;
 for (i=0;i<Lc;++i)
      nr=(nr*4)+s[i]-'a';
 h[nr & Dim].push_back(nr);
 for (i=1;i<=L-Lc;++i)
     {
      nr=((nr*4)&Nrmax)+s[i+Lc-1]-'a';
      h[nr & Dim].push_back(nr);
     }

 for (i=0,nr=0;i<Lc;++i)
     nr=(nr*4)+c[i]-'a';

 while (1)
       {
        for (it=h[nr & Dim].begin();it<h[nr & Dim].end();++it)
            if (*it==nr) break;
        if (it==h[nr & Dim].end()) break;
        ++tot;
        h[nr & Dim].erase(it);
       }
// tot+=h[nr & Dim];
// h[nr & Dim]=0;

 while (! feof(stdin))
       {
        scanf("%s\n",c);
        for (i=0,nr=0;i<Lc;++i)
            nr=(nr*4)+c[i]-'a';
        while (1)
       {
        for (it=h[nr & Dim].begin();it<h[nr & Dim].end();++it)
            if (*it==nr) break;
        if (it==h[nr & Dim].end()) break;
        ++tot;
        h[nr & Dim].erase(it);
       }
        //tot+=h[nr & Dim];
        //h[nr & Dim]=0;
       }
 printf("%d",tot);
 fclose(stdin);
 fclose(stdout);
 return 0;
}