Cod sursa(job #2611757)

Utilizator rares9991Matisan Rares-Stefan rares9991 Data 7 mai 2020 16:10:59
Problema Radix Sort Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.08 kb
#include <fstream>

using namespace std;

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

const int N=10000005;
const int NB=8;

int v[N], aux[N], nr[(1<<8)+10], poz[(1<<8)+10], n;

int main()
{
    long long int a,b,c;
    in>>n>>a>>b>>c;
    v[0]=b;
    int maxi=b;
    for(int i=1; i<n; i++)
        {
            v[i]=(a*v[i-1]+b)%c;
            maxi=max(maxi, v[i]);
        }
    int B= (1<<8), NC=0;
    while (maxi != 0)
    {
        NC++;
        maxi /= B;
    }
    int m=B-1;
    for(int k=0; k<NC; k++)
    {
        int nb=k*NB;
        for(int j=0; j<B; j++)
            nr[j]=0;
        for(int i=0; i<n; i++)
        {
            int cif=(v[i]>>nb)&m;
            nr[cif]++;
        }
        poz[0]=0;
        for(int j=0; j<B; j++)
            poz[j]=poz[j-1]+nr[j-1];
        for(int i=0; i<n; i++)
        {
            int cif=(v[i]>>nb)&m;
            aux[poz[cif]++]=v[i];
        }
        for(int i=0; i<n; i++)
            v[i]=aux[i];
    }
    for(int i=0; i<n; i=i+10)
        out<<v[i]<<" ";
    return 0;
}