Cod sursa(job #1842898)

Utilizator zdavid112zIon David-Gabriel zdavid112z Data 7 ianuarie 2017 19:06:15
Problema Radix Sort Scor 30
Compilator cpp Status done
Runda Arhiva educationala Marime 1.21 kb
#include <cstdio>
#define NMAX 10000003
#define grupa(nr, step) ((nr >> step) & 1)

using namespace std;

int s[2][2][NMAX];
int ls[2][2];
int n, a, b, c;
int pc = 0, lc = 0, *vc, indc = -1;
int mc = 1, mp;

inline void next(int& val)
{
    while(pc == lc)
    {
        vc = s[mp][++indc];
        lc = ls[mp][indc];
        pc = 0;
    }
    val = vc[pc++];
}

int main()
{
    int i, gr = 0, aux, prev;
    freopen("radixsort.in", "r", stdin);
    freopen("radixsort.out", "w", stdout);
    scanf("%d%d%d%d", &n, &a, &b, &c);
    prev = b;
    s[0][prev & 1][ls[0][prev & 1]++] = prev;
    for(i = 1; i < n; i++)
    {
        aux = ((1LL * a * prev) % c + b) % c;
        s[0][aux & 1][ls[0][aux & 1]++] = aux;
        prev = aux;
    }
    for(gr = 1; gr != 33; gr++)
    {
        for(i = 0; i < 2; i++) ls[mc][i] = 0;
        for(i = 0; i < n; i++)
        {
            next(aux);
            s[mc][grupa(aux, gr)][ls[mc][grupa(aux, gr)]++] = aux;
        }
        pc = 0; lc = 0; indc = -1;
        mc = mp;
        mp = (mp == 1) ? 0 : 1;
    }
    mp = mc;
    for(i = 0; i < n; i++)
    {
        next(aux);
        if(i % 10 == 0) printf("%d ", aux);
    }
    return 0;
}