Cod sursa(job #2805894)

Utilizator Bogdan.paun50Mandresi Bogdan Bogdan.paun50 Data 22 noiembrie 2021 06:17:11
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.01 kb
#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
using namespace std;


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

int h[1000000], n;

int main()
{
    fin >> n;
    for(int i = 1; i <= n; i++)
        fin >> h[i];
    int dim_heap = 1;
    for (int i = 2; i <= n; ++i)
    {
        dim_heap++;
        int c = i, p = i/2;
        while (p > 0 && h[c] > h[p])
        {
            swap(h[c], h[p]);
            c = p;
            p = c / 2;
        }
    }
    while (dim_heap > 1)
    {
        swap(h[1], h[dim_heap]);
        dim_heap--;
        int p = 1, c = 2*p;
        while (c <= dim_heap)
        {
            if (c + 1 <= dim_heap && h[c + 1] > h[c])
                c++;
                if (h[p] < h[c])
                    swap(h[p], h[c]);
                else
                    break;
            p = c;
            c = 2 * p;
        }
    }
    for(int i = 1; i <= n; i++)
        fout << h[i] << " ";
    return 0;
}