Cod sursa(job #1309751)

Utilizator romircea2010FMI Trifan Mircea Mihai romircea2010 Data 5 ianuarie 2015 23:48:49
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 1.36 kb
#include <iostream>
#include <fstream>
#define LeftSon (node << 1)
#define RightSon ((node << 1) + 1)

using namespace std;

unsigned int ansmin;
const unsigned int NMax = 500010, INF = 4000000000;
int N;
unsigned int a[NMax];
unsigned int aint[4 * NMax];

void Read()
{
    ifstream f ("algsort.in");
    f >> N;
    for (int i = 1; i <= N; ++ i)
        f >> a[i];
    f.close();
}

void Build(const int node, const int st, const int dr)
{
    if (st == dr)
    {
        aint[node] = a[st];
        return ;
    }
    int mij = (st+dr) >> 1;
    Build(LeftSon, st, mij);
    Build(RightSon, mij + 1, dr);
    aint[node] = min (aint[LeftSon], aint[RightSon]);
}

void Query(const int node, const int st, const int dr)
{
    if (st == dr)
    {
        ansmin = aint[node];
        aint[node] = INF;
        return ;
    }
    int mij = (st+dr) >> 1;
    if (aint[LeftSon] == aint[node])
        Query(LeftSon, st, mij);
    else
        Query(RightSon, mij + 1, dr);
    aint[node] = min(aint[LeftSon], aint[RightSon]);
}

int main()
{
    Read();
    Build(1, 1, N);
    for (int i = 1; i <= N; ++ i)
    {
        ansmin = INF;
        Query(1, 1, N);
        a[i] = ansmin;
    }
    ofstream g ("algsort.out");
    for (int i = 1; i <= N; ++ i)
        g << a[i] << " ";
    g << "\n";
    g.close();
    return 0;
}