Cod sursa(job #1321317)

Utilizator diana-t95FMI Tudoreanu Diana Elena diana-t95 Data 18 ianuarie 2015 23:43:33
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.75 kb
#include <iostream>
#include <fstream>
using namespace std;
#define maxn 500002
#define maxx 2147483647
int n, v[maxn], sol[maxn], np;
void down(int x)
{
    int m=0;
    while (m!=x)
    {
        m=x;
        if (2*m<=np && v[x]>=v[2*m]) x=2*m;
        if (2*m+1<=np && v[2*m+1]<=v[x]) x=2*m+1;
        swap(v[m], v[x]);
    }
}
void up(int x)
{
    while (x/2 && v[x]<=v[x/2])
    {
        swap(v[x], v[x/2]);
        x/=2;
    }
}
int main()
{
    ifstream f("algsort.in");
    ofstream g("algsort.out");
    f>>n;
    int i;
    for (i=1;i<=n;i++)
    {
        f>>v[i];
        up(i);
    }
    np=n;
    for (i=1;i<=n;i++)
    {
        g<<v[1]<<' ';
        swap(v[1], v[np]);
        np--;
        down(1);
    }
}