Cod sursa(job #3294305)

Utilizator TonyyAntonie Danoiu Tonyy Data 21 aprilie 2025 01:43:13
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.05 kb
#include <fstream>
using namespace std;

ifstream cin("algsort.in");
ofstream cout("algsort.out");

/*
void swap(int& a, int& b)
{
    int aux = a;
    a = b;
    b = aux;
}

void quickSort(int a[], int st, int dr)
{
    if(st < dr)
    {
        int poz = st;
        for(int i = st; i < dr; ++i)
            if(a[i] < a[dr])
                swap(a[poz++], a[i]);
        swap(a[poz], a[dr]);
        quickSort(a, st, poz - 1);
        quickSort(a, poz + 1, dr);
    }
}
*/

void QuickSort(int v[], int st, int dr)
{
	if(st < dr)
	{
		int m = (st + dr) / 2, i = st, j = dr;
        bool d = false;
        swap(v[st], v[m]);
		while(i < j)
		{
			if(v[i] >= v[j])
			{
                swap(v[i], v[j]);
				d = !d;
			}
			i += d;
			j -= !d;
		}
		QuickSort(v, st , i - 1);
		QuickSort(v, i + 1 , dr);
	}
}

int n, a[500001];

int main()
{
    cin >> n;
    for(int i = 1; i <= n; ++i)
        cin >> a[i];
    QuickSort(a, 1, n);
    for(int i = 1; i <= n; ++i)
        cout << a[i] << " ";

    return 0;
}