Cod sursa(job #2757024)

Utilizator DariusGhercaDarius Gherca DariusGherca Data 3 iunie 2021 15:59:59
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.88 kb
#include <bits/stdc++.h>

using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
const int N=5e5+10;
int v[N],nh,n;
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);
    }
}
void urca(int p)
{
    while(p>1 && v[p]>v[p/2])
    {
        swap(v[p],v[p/2]);
        p=p/2;
    }
}
void adauga(int val)
{
    v[++nh]=val;
    urca(nh);
}
int main()
{
    f>>n;
    nh=0;
    for(int i=1;i<=n;i++)
    {
        int aux;
        f>>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++)
    {
        g<<v[i]<<" ";
    }
    return 0;
}