Cod sursa(job #2068745)

Utilizator ioanalexandraIoan Alexandra ioanalexandra Data 18 noiembrie 2017 10:49:27
Problema Sortare prin comparare Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.91 kb
#include <bits/stdc++.h>
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
int h[500001];
int n;
void up(int p)
{
    if(p>1&&h[p/2]>h[p])
    {
        swap(h[p],h[p/2]);
        up[p/2];
    }
}
void add(int x)
{
    h[++n]=x;
    up(n);
}
void down(int p)
{
    if(p*2+1<=n&&(h[2*p]<h[p]||h[2*p+1]<h[p]))
    {
        if(h[2*p]<h[2*p+1])
        {
            swap(h[p],h[2*p]);
            down(2*p);
        }
        else
        {
            swap(h[p],h[2*p+1]);
            down(2*p+1);
        }
    }
    else if(p*2<=n&&h[2*p]<h[p])
    {
        swap(h[p],h[2*p]);
    }
}
void dell(int p)
{
    swap(h[p],h[n]);
    n--;
    up[p];
    down(p);
}
int main()
{
    int i,x,t;
    f>>t;
    for(i=1; i<=t; i++)
    {
        f>>x;
        add(x);
    }

    while(n)
    {
        g<<h[1]<<" ";
        dell(1);
    }
    return 0;
}