Cod sursa(job #1167804)

Utilizator mirceadinoMircea Popoveniuc mirceadino Data 5 aprilie 2014 22:31:51
Problema Radix Sort Scor 30
Compilator cpp Status done
Runda Arhiva educationala Marime 1.04 kb
#include<cstdio>
#include<vector>

using namespace std;

const int NMAX = 10000000+5;
const int DIGITS = 4;
const int BUCKET = (1<<8)-1;

void Read(),Solve(),Print();

int N,A,B,C;
int V[NMAX];
vector<int> Buckets[BUCKET+5];

int main()
{
    Read();
    Solve();
    Print();

    return 0;
}

void Read()
{
    int i;

    freopen("radixsort.in","r",stdin);
    freopen("radixsort.out","w",stdout);

    scanf("%d%d%d%d",&N,&A,&B,&C);

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

void Solve()
{
    int i,j,step;
    vector<int>::iterator it;

    for(step = 0; step < 4; step++)
    {
        for(i = 1; i <= N; i++)
            Buckets[(V[i]>>(8*step))&BUCKET].push_back(V[i]);

        for(i = 0, j = 0; i <= BUCKET; i++)
        {
            for(it = Buckets[i].begin(); it != Buckets[i].end(); it++)
                V[++j] = *it;
            Buckets[i].resize(0);

        }
    }
}

void Print()
{
    int i;

    for(i = 1; i <= N; i += 10)
        printf("%d ",V[i]);
}