Cod sursa(job #797050)

Utilizator claudiumihailClaudiu Mihail claudiumihail Data 13 octombrie 2012 11:36:33
Problema Sortare prin comparare Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.14 kb
#include <fstream>
#include <iostream>
#include <algorithm>
#include <vector>
#include <iterator>

using namespace std;

typedef unsigned int uint32;

template <class Iter>
void quicksort(Iter start, Iter end)
{
    if (std::distance(start, end) > 1)
    {
        Iter pivot = start + (end - start)/2;

        Iter partIndex = partition(start, end, bind2nd(less_equal<uint32>(), *pivot));

        quicksort(start, partIndex-1);
        quicksort(partIndex+1, end);
    }
}

int main()
{
    int n;
    vector<uint32> vec;
    fstream fin("algsort.in", fstream::in);
    fstream fout("algsort.out", fstream::out);
    
    fin >> n;
    //cout << n << endl;
    
    vec.reserve(n);
    
    istream_iterator<uint32> inIt(fin);
    istream_iterator<uint32> eofIt;
    
    copy(inIt, eofIt, back_inserter(vec));
    
    /*for (int i=0; i<n; ++i)
    {
        fin >> vec[i];
        cout << vec[i] << " ";
    }
    cout << endl;*/
    
    quicksort(vec.begin(), vec.end());
    
    ostream_iterator<uint32> outIt(fout, " ");
    copy(vec.begin(), vec.end(), outIt);
    
    //cout << endl;

    return 0;
}