Cod sursa(job #1875961)

Utilizator DawlauAndrei Blahovici Dawlau Data 11 februarie 2017 20:15:57
Problema Radix Sort Scor 30
Compilator cpp Status done
Runda Arhiva educationala Marime 0.92 kb
#include<fstream>
using namespace std;
ifstream fin("radixsort.in");
ofstream fout("radixsort.out");
int v[10000005],n,a,b,c,aux[10000005];
void constr()
{
    fin>>n>>a>>b>>c;
    v[1]=b;
    for(int i=2;i<=n;++i)
        v[i]=(a*v[i-1]+b)%c;
}
int maxim()
{
    int m=-1;
    for(int i=1;i<=n;++i)
        if(v[i]>m)
            m=v[i];
    return m;
}
void countsort(int exp)
{
    int fr[10]={0};
    for(int i=1;i<=n;++i)
        ++fr[(v[i]/exp)%10];
    for(int i=1;i<10;++i)
        fr[i]+=fr[i-1];
    for(int i=n;i>=1;--i)
    {
        aux[fr[(v[i]/exp)%10]]=v[i];
        --fr[(v[i]/exp)%10];
    }
    for(int i=1;i<=n;++i)
        v[i]=aux[i];
}
void radixsort()
{
    int ma=maxim();
    for(int exp=1;ma/exp;exp*=10)
        countsort(exp);
}
void afisare()
{
    for(int i=1;i<=n;i+=10)
        fout<<v[i]<<' ';
}
int main()
{
    constr();
    radixsort();
    afisare();
}