Cod sursa(job #3123982)

Utilizator karina_antoniuAntoniu Karina karina_antoniu Data 26 aprilie 2023 15:59:47
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.91 kb
#include <fstream>
using namespace std;

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

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

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] << " ";
    return 0;
}