Cod sursa(job #2624831)

Utilizator RomanacheRoman Alexandru-George Romanache Data 5 iunie 2020 15:19:16
Problema Radix Sort Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.76 kb
#include <fstream>

using namespace std;

ifstream fin("radixsort.in");

ofstream fout("radixsort.out");

long long n,a,b,c;

int v[10000002],vmax,i,j,f[256],w[10000002],nr, p ;

int main()

{
    fin>>n>>a>>b>>c;
    v[1]=b;
    for(i=2;i<=n;i++)
    {
        v[i]=int((long long)((a*v[i-1]+b)%c));
        if(v[i]>vmax)
            vmax=v[i];
    }
	nr = 0;
	while (vmax)
	{
		nr++;
		vmax = vmax/256;
	}
	p = 0;
	for (;nr--;p+=8)
	{
		for (i=0;i<=255;i++)
			f[i] = 0;
		for (i=1;i<=n;i++)
			f[ (v[i]>>p)&255 ] ++;
		for (i=1;i<=255;i++)
			f[i] += f[i-1];
		for (i=n;i>=1;i--)
		{
			w[ f[(v[i]>>p)&255]-- ] = v[i];
		}
		for (i=1;i<=n;i++)
			v[i] = w[i];
	}
	for (i=1;i<=n;i+=10)
		fout<<v[i]<<" ";

    return 0;
}