Cod sursa(job #978349)

Utilizator AlexandruValeanuAlexandru Valeanu AlexandruValeanu Data 28 iulie 2013 17:58:45
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 1.21 kb
#include <iostream>
#include <fstream>

using namespace std;

int v[500002], n;

void ShellSort( int *a, int n )
{
    int h, i, j, k;

    for ( h = n; h; h >>= 1 )
            for ( i = h; i <= n; i++ )
            {
                k = a[i];

                for ( j = i; j >= h && k < a[j - h]; j -= h )
                    a[j] = a[j - h];

                a[j] = k;
            }
}

void ShellSort1( int *a, int n )
{
    for ( int increment = n >> 1; increment > 0; increment >>= 1 )
            for ( int i = increment; i <= n; i++ )
            {
                int temp = a[i];
                int j;

                for ( j = i; j >= increment; j -= increment )
                {
                    if ( temp < a[j - increment] )
                            a[j] = a[j - increment];
                    else
                            break;
                }

                a[j] = temp;
            }
}

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

    f >> n;

    for ( int i = 1; i <= n; i++ )
            f >> v[i];

    ShellSort1( v, n );

    for ( int i = 1; i <= n; i++ )
            g << v[i] << " ";

    return 0;
}