Cod sursa(job #2491670)

Utilizator mirceaisherebina mircea mirceaishere Data 12 noiembrie 2019 22:08:11
Problema Radix Sort Scor 70
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.8 kb
#include <fstream>
#include <cstring>
using namespace std;

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

int n, a, b, c, i, j, exp, v[10000100], aux[10000100];
int cifra[1<<8];

int main(){
    fin>>n>>a>>b>>c;
    v[1]=b;
    for(i=2; i<=n; i++){
        v[i]=(a*1LL*v[i-1]%c+b)%c;
    }
    long long p=0;
    for(exp=1; exp<=4; exp++){
        memset(cifra, 0, sizeof(cifra));
        for(i=1; i<=n; i++){
            cifra[ ((v[i]>>p)&255) ]++;
        }
        for(i=1; i<=255; i++){
            cifra[i]+=cifra[i-1];
        }
        for(i=n; i>0; i--){
            aux[ cifra[ ((v[i]>>p)&255) ] -- ]=v[i];
        }
        for(i=1; i<=n; i++){
            v[i]=aux[i];
        }
        p+=8;
    }
    for(i=1; i<=n; i+=10){
        fout<<v[i]<<" ";
    }
}