Cod sursa(job #1164320)

Utilizator SRaduRadu Szasz SRadu Data 1 aprilie 2014 23:42:56
Problema Radix Sort Scor 60
Compilator cpp Status done
Runda Arhiva educationala Marime 0.78 kb
#include <fstream>
#include <vector>
using namespace std;

const int MAX = 10000050;
const int mask = 255;

int N, A, B, C;
int V[MAX];

vector<int> X[mask + 2];

void Sort(int Shift) {
    for(int i = 1; i <= N; i++) {
        X[(V[i] >> Shift) & mask].push_back(V[i]);
    }
    for(int i = 0, poz = 0; i <= mask; i++) {
        for(size_t j = 0; j < X[i].size(); j++) {
            V[++poz] = X[i][j];
        } X[i].clear();
    }
}

int main() {
    ifstream in("radixsort.in");
    in >> N >> A >> B >> C;
    in.close();

    V[1] = B;
    for(int i = 2; i <= N; i++) 
        V[i] = (1LL * A * V[i - 1] + B) % C;

    for(int i = 0; i <= 3; i++) {
        Sort(i * 8);
    }

    ofstream out("radixsort.out");
    for(int i = 1; i <= N; i += 10)
        out << V[i] << " ";
    out.close();
}