Cod sursa(job #2390504)

Utilizator vladvlad00Vlad Teodorescu vladvlad00 Data 28 martie 2019 09:58:08
Problema Radix Sort Scor 70
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.95 kb
#include <fstream>
#include <cstring>

using namespace std;

FILE * fin=fopen("radixsort.in","r");
FILE * fout=fopen("radixsort.out","w");

int n, a, b, c, cif, nr, maxim, v[10000005], f[300], aux[10000005];
long long p;

int main()
{
    int i, j, k;

    fscanf(fin,"%d %d %d %d",&n,&a,&b,&c);
    v[1] = b;
    for (i=2;i<=n;i++)
        v[i] = (1ll*a*v[i-1]+b)%c;
    p = 1;
    for (k=0;k<4;k++)
    {
        p<<=8;
        memset(f,0,sizeof(f));
        for (i=1;i<=n;i++)
        {
            cif = v[i]&(p-1);
            cif >>= (8*k);
            f[cif+1]++;
        }
        for (i=1;i<(1<<8);i++)
            f[i]+=f[i-1];
        memset(aux,0,sizeof(aux));
        for (i=1;i<=n;i++)
        {
            cif = v[i]&(p-1);
            cif >>= (8*k);
            aux[++f[cif]] = v[i];
        }
        memcpy(v,aux,sizeof(aux));
    }
    for (i=1;i<=n;i+=10)
        fprintf(fout,"%d ",v[i]);
    return 0;
}