Cod sursa(job #2757929)

Utilizator darius2k2Floroiu Darius Eduard darius2k2 Data 7 iunie 2021 17:48:07
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.87 kb
#include <iostream>
#include <fstream>

using namespace std;

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

int n,nh;

int v[500001];

void urca(int p)
{
    while(p>1 && v[p]>v[p/2]){
        swap(v[p],v[p/2]);
        p/=2;
    }
}

void adauga(int val)
{
    v[++nh]=val;
    urca(nh);
}

void coboara(int p)
{
    int fs,fd,bun;
    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);
    }
}

int main()
{
    in>>n;
    nh=0;
    for(int i=1;i<=n;i++){
        int aux;
        in>>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++)
        out<<v[i]<<' ';
    return 0;
}