Cod sursa(job #648520)

Utilizator DraStiKDragos Oprica DraStiK Data 13 decembrie 2011 17:11:07
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.63 kb
#include <fstream>
using namespace std;

#define MAGIC 1.618033
#define Nmax 500001
#define Bins 16

int v[Nmax],gap[Bins];
int N;

int main () {

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

  fin>>N;
  for (int i=0; i<N; ++i)
    fin>>v[i];

  gap[Bins-1]=1;
  for (int i=Bins-2; i>=0; --i)
    gap[i]=int(MAGIC*gap[i+1]+1);

  for (int k=0; k<Bins; ++k) {
    for (int i=gap[k]; i<N; ++i) {
      int j,tmp=v[i];
      for (j=i; j>=gap[k] && v[j-gap[k]]>tmp; j-=gap[k])
        v[j]=v[j-gap[k]];
      v[j]=tmp;
    }
  }

  for (int i=0; i<N; ++i)
    fout<<v[i]<<" ";

  return 0;
}