Cod sursa(job #2871633)

Utilizator darisavuSavu Daria darisavu Data 15 martie 2022 10:41:33
Problema Abc2 Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.9 kb
#include <vector>
#include <fstream>
#define mod 10007
#define prim 3
using namespace std;
ifstream f("abc2.in");
ofstream g("abc2.out");
typedef unsigned int ui;
ui hash1,hashm,p=1,poz;
ui sa,sb,i;
string s,d;
vector<ui> v[mod];
bool searchh(ui h)
{
    ui p=v[h%mod].size();for(ui 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;
    f.close();
    g.close();
    return 0;
}