Cod sursa(job #1042466)

Utilizator Iustin_BulimarFMI Iustin Bulimar Iustin_Bulimar Data 27 noiembrie 2013 02:06:37
Problema Sortare prin comparare Scor 20
Compilator cpp Status done
Runda Arhiva educationala Marime 0.79 kb
#include <fstream>
using namespace std;
ifstream cin("algsort.in");
ofstream cout("algsort.out");

int n, v[5000001], i, m, x, j;

void push()
{
    int j=i;
    while(v[j/2]<v[j] && j>1)
    {
        swap(v[j/2], v[j]);
        j/=2;
    }
}

int maxim(int i)
{
    if(v[2*i]>v[2*i+1])
    {
        j=2*i;
        return v[2*i];
    }
    j=2*i+1;
    return v[2*i+1];
}
void pop(int &m)
{
    int i;
    swap(v[1], v[m]);
    m--;
    i=1;
    x=maxim(i);
    while(i<m && j<=m && v[i]<x)
    {
        swap(v[i],v[j]);
        i=j;
        x=maxim(i);
    }
}

int main()
{
    cin>>n;
    for(i=1; i<=n; i++)
    {
        cin>>v[i];
        push();
    }
    m=n;
    for(i=1; i<n; i++) pop(m);
    for(i=1; i<=n; i++) cout<<v[i]<<" ";
    return 0;
}