Cod sursa(job #1477734)

Utilizator AlexandruValeanuAlexandru Valeanu AlexandruValeanu Data 26 august 2015 20:37:45
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.79 kb
#include <bits/stdc++.h>

using namespace std;

void shell_sort(int A[], int n)
{
    const int gaps[] = {1, 9, 34, 182, 836, 4025, 19001, 90358, 428481};

    for (int p = 8; p >= 0; p--)
    {
        int gap = gaps[p];

        for (int i = gap; i < n; ++i)
        {
            int temp = A[i];
            int j = i;

            while (j >= gap && A[j - gap] > temp)
            {
                A[j] = A[j - gap];
                j -= gap;
            }

            A[j] = temp;
        }
    }
}

const int MAX_N = 500000 + 1;

int A[MAX_N];
int N;

int main()
{
    ifstream in("algsort.in");
    ofstream out("algsort.out");

    in >> N;

    for (int i = 0; i < N; ++i)
        in >> A[i];

    shell_sort(A, N);

    for (int i = 0; i < N; ++i)
        out << A[i] << " ";

    return 0;
}