Cod sursa(job #1807406)

Utilizator serbanSlincu Serban serban Data 16 noiembrie 2016 16:01:03
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.68 kb
#include <fstream>

using namespace std;

int a[500005];
int n;

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

    int aux = a[(in + sf) / 2];
    int i = in, j = sf;

    while(i <= j) {
        while(a[i] < aux) i ++;
        while(a[j] > aux) j --;
        if(i <= j) {
            swap(a[i], a[j]);
            i ++;
            j --;
        }
    }

    quick(in, j);
    quick(i, 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;
}