Cod sursa(job #1060633)

Utilizator tannous.marcTannous Marc tannous.marc Data 18 decembrie 2013 11:03:42
Problema Abc2 Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.28 kb
#include <fstream>
#include <vector>
#include <string>
using namespace std;
const int MOD=66013;
typedef vector<int> hesh;
typedef hesh::iterator hit;
hesh ht[MOD+10];
hit find(int x)
{
    for( hit i=ht[x%MOD].begin(); i!=ht[x%MOD].end(); i++)
        if( x==*i )
            return i;
    return ht[x%MOD].end();
}

int main()
{
    ifstream in("abc2.in");
    ofstream out("abc2.out");
    string text, cuv;
    in>>text;
    int lung,val,cnt=0;
    unsigned int nr=0;
    hit gas;
    in>>cuv;
    lung=cuv.length();
    while(!in.eof())
    {
        nr=0;
            for(int i=0;i<lung;i++){
                if(cuv[i]=='a') val=0;
                else if(cuv[i]=='b') val=1;
                else if(cuv[i]=='c') val=2;
                nr=nr*3+val;
            }
        gas=find(nr);
        if(gas==ht[nr%MOD].end()) ht[nr%MOD].push_back(nr);
        in>>cuv;
    }
    int lungi=text.length();
    for(int i=0;i<lungi-lung+1;i++)
    {
        nr=0;
        for(int j=i;j<i+lung;j++)
        {
            if(text[j]=='a') val=0;
            else if(text[j]=='b') val=1;
            else if(text[j]=='c') val=2;
            nr=nr*3+val;
        }
        gas=find(nr);
        if(gas!=ht[nr%MOD].end()) cnt++;
    }
    out<<cnt;
    return 0;
}