Cod sursa(job #1418391)

Utilizator EpictetStamatin Cristian Epictet Data 12 aprilie 2015 22:20:07
Problema Abc2 Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.11 kb
#include <fstream>
#include <algorithm>
#include <string>
#include <vector>
#define MOD 666013
#define ui unsigned int
using namespace std;
ifstream fin ("abc2.in");
ofstream fout ("abc2.out");
vector < ui > H[MOD + 10];
string T, C;
ui N, aux, sol, P3[25], CH[250];

inline bool Caut(ui val)
{
    ui l = val % MOD;
    for (int i = 0; i < H[l].size(); i++)
    {
        if (H[l][i] == val) {
            return 1;
        }
    }
    return 0;
}

int main()
{
    P3[1] = 1;
    for (int i = 2; i <= 20; i++) {
        P3[i] = P3[i - 1] * 3;
    }

    CH['a'] = 0;
    CH['b'] = 1;
    CH['c'] = 2;

    fin >> T;
    while (fin >> C)
    {
        N = C.size();
        aux = 0;
        for (int i = 0; i < N; i++) {
            aux = aux + P3[i + 1] * CH[C[i]];
        }
        H[aux % MOD].push_back(aux);
    }

    aux = 0;
    for (int i = 0; i < N; i++) {
        aux = aux + P3[i + 1] * CH[T[i]];
    }

    sol = Caut(aux);
    for (int i = N; i < T.size(); i++)
    {
        aux /= 3;
        aux = aux + P3[N] * CH[T[i]];
        sol += Caut(aux);
    }

    fout << sol << '\n';
    fout.close();
    return 0;
}