Cod sursa(job #1807403)

Utilizator serbanSlincu Serban serban Data 16 noiembrie 2016 15:57:41
Problema Sortare prin comparare Scor 40
Compilator cpp Status done
Runda Arhiva educationala Marime 0.65 kb
#include <fstream>

using namespace std;

int a[500005];
int n;

void quick(int in, int sf) {
    if(sf <= in) return ;

    int aux = a[sf];
    int i = in;

    for(int j = in; j < sf; j ++) {
        if(a[j] <= aux) {
            swap(a[i], a[j]);
            i ++;
        }
    }
    int p = i;
    swap(a[p], a[sf]);

    quick(in, p - 1);
    quick(p + 1, sf);
}

int main()
{
    ifstream f("algsort.in");
    ofstream g("algsort.out");

    f >> n;
    for(int i = 1; i <= n; i ++) {
        f >> a[i];
    }

    quick(1, n);

    for(int i = 1; i <= n; i ++) g << a[i] << " ";
    g << "\n";
    return 0;
}