Cod sursa(job #3123975)

Utilizator RalucaioneteRalucaIonete Ralucaionete Data 26 aprilie 2023 15:56:08
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.89 kb
#include<fstream>
using namespace std;

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

const int N=5e5;
int n, nh, h[N+1];

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

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

void coboara(int p)
{
    int fs=2*p, fd=2*p + 1, bun=p;
    if(fs<=nh && h[fs] > h[bun])
    {
        bun=fs;
    }
    if(fd<=nh && h[fd] > h[bun])
    {
        bun=fd;
    }
    if(bun!=p)
    {
        swap(h[p], h[bun]);
        coboara(bun);
    }
}
int main()
{
    cin >> n;
    for(int i=1; i<=n; i++)
        {
            int x;
            cin >> x;
            adauga(x);
        }
    for(int i=n; i>1; i--)
    {
        swap(h[1], h[i]);
        nh--;
        coboara(1);
    }
    for(int i=1; i<=n; i++)
        cout << h[i] << " ";
}