Cod sursa(job #1099213)

Utilizator okros_alexandruOkros Alexandru okros_alexandru Data 5 februarie 2014 17:33:41
Problema Radix Sort Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 1.14 kb
#include <fstream>
#include <cstring>
#define Nmax 10100100
#define Bmax (1 << 8)
#define Byte(x) ((x >> Step) & (Bmax - 1))
using namespace std;

int N, A, B, C, V[Nmax], Tmp[Nmax];

void RadixSort() {

    int i, Step, Size[Bmax], Index[Bmax];

    for(Step = 0; Step <= 24; Step += 8) {

        memset(Size, 0, sizeof(Size));

        for(i = 1; i <= N; i++) {
            Tmp[i] = V[i];
            Size[Byte(V[i])]++;
            }

        Index[0] = 1;
        for(i = 1; i < Bmax; i++)
            Index[i] = Index[i - 1] + Size[i - 1];

        for(i = 1; i <= N; i++)
            V[Index[Byte(Tmp[i])]++] = Tmp[i];

        }

}
void Solve() {

    int i;

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

    RadixSort();

}
void Read() {

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

}
void Write() {

    ofstream out("radixsort.out");

    for(int i = 1; i <= N; i += 10)
        out << V[i] << ' ';
    out << '\n';

    out.close();

}
int main() {

    Read();
    Solve();
    Write();

    return 0;

}