Cod sursa(job #2757022)

Utilizator gabriel_froneaFronea Gabriel gabriel_fronea Data 3 iunie 2021 15:59:55
Problema Sortare prin comparare Scor 40
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.92 kb
#include <fstream>

using namespace std;


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

int n, v[10001], nh;

void urca(int p)
{
    while(p>1 && v[p] > v[p/2])
    {
        swap(v[p], v[p/2]);
        p /= 2;
    }
}

void adauga(int val)
{
    v[++nh] = val;
    urca(nh);
}

void coboara(int p)
{
    int fs = 2*p, fd = 2*p + 1, bun = p;
    if(fs <= nh && v[fs] > v[bun])
    {
        bun = fs;
    }
    if(fd <= nh && v[fd] > v[bun])
    {
        bun = fd;
    }
    if(bun != p)
    {
        swap(v[bun], v[p]);
        coboara(bun);
    }
}

int main()
{
    in >> n;
    for(int i=1; i<=n; i++)
    {
        int aux;
        in >> aux;
        adauga(aux);
    }
    for(int i = n; i >= 1; i--)
    {
        swap(v[1], v[i]);
        nh--;
        coboara(1);
    }
    for(int i=1; i<=n; i++)
    {
        out<<v[i]<<" ";
    }
    return 0;
}