Cod sursa(job #1210690)

Utilizator mariusn01Marius Nicoli mariusn01 Data 20 iulie 2014 20:47:58
Problema Radix Sort Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.85 kb
#include <fstream>
#include <stack>
#define B 4
#define biti 8
#define DIM 10000010

using namespace std;

ifstream fin("radixsort.in");
ofstream fout("radixsort.out");

//2 16
//4 8


int v[DIM], w[DIM];
int f[1<<biti];
int n, a, b, c, i, p, k;

int main(){
    fin>>n>>a>>b>>c;
    v[1] = b;
    for (i=2;i<=n;i++)
        v[i] = (int)((1LL * a * v[i-1] + b) % c);


    for (p = 0; p<B; p++) {
        for (i=1;i<=n;i++)
            f[  (v[i]>>(p*biti)) & ((1<<biti)-1) ]++;
        for (i=1;i<=(1<<biti)-1;i++)
            f[i] += f[i-1];
        for (i=n;i>=1;i--) {
            w[ f[  (v[i]>>(p*biti)) & ((1<<biti)-1) ] ] = v[i];
            f[  (v[i]>>(p*biti)) & ((1<<biti)-1) ] --;
        }
        for (i=1;i<=n;i++)
            v[i] = w[i];
    }

    for (i=1;i<=n;i+=10)
        fout<<v[i]<<" ";

    return 0;
}