Cod sursa(job #1723120)

Utilizator dr_personalityEftime Andrei Horatiu dr_personality Data 29 iunie 2016 18:31:25
Problema Radix Sort Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.94 kb
#include<fstream>
#include<cstring>
using namespace std;
ifstream in("radixsort.in");
ofstream out("radixsort.out");

const int nmax = 10000006;
int p, x[nmax], v[nmax], a, b, c, n, poz[260];

int cifra( int nr, int p ){
    return( (nr>>p) & 255 );
}

int main(){
	int player_unu=0;

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

    p = 0;
    for(int t = 1; t<=4; t++)
	{
        memset(poz, 0, sizeof(poz));
        for(int i = 1; i<=n; i++)
		{
            poz[cifra(v[i], p)]++;
        }

        for(int i = 1; i<=255; i++)
		{
            poz[i] += poz[i - 1];
        }

        for(int i = n; i>=1; i--)
		{
            x[ poz[cifra(v[i], p)]--] = v[i];
        }

        memcpy( v, x, sizeof( x ) );
        p += 8;
    }

    for(int i = 1; i <= n; i += 10)
	{
        out << v[i] << " ";
    }

    return player_unu;
}