Cod sursa(job #2068718)

Utilizator nerelog25Radu Andrei Stefan nerelog25 Data 18 noiembrie 2017 10:40:34
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.9 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
int m,i,x;
int h[500000],n;
void up(int p)
{
    if(p>1&&h[p/2]>h[p])
    {
        swap(h[p],h[p/2]);
        up(p/2);
    }
}
void down(int p)
{
   if(p*2+1<=n&&(h[p*2]<h[p]||h[p*2+1]<h[p]))
       {
        if(h[p*2+1]<h[p*2])
        {
            swap(h[p],h[p*2+1]);
            down(p*2+1);
        }
        else
        {
            swap(h[p],h[p*2]);
            down(p*2);
        }
       }
    else if(p*2<=n&&h[p*2]<h[p])
    {
        swap(h[p],h[p*2]);
    }
}
void add(int x)
{
    h[++n]=x;
    up(n);
}
void del(int p)
{
    swap(h[p],h[n]);
    n--;
    up(p);
    down(p);
}
int main()
{
f>>m;
for(i=1;i<=m;i++)
    {
        f>>x;
        add(x);
    }
for(i=1;i<=m;i++)
{
    g<<h[1]<<" ";
    del(1);
}
    return 0;
}