Cod sursa(job #2850077)

Utilizator AndreiN96Andrei Nicula AndreiN96 Data 16 februarie 2022 11:25:23
Problema Sortare prin comparare Scor 40
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.82 kb
#include <fstream>

using namespace std;

const int N = 5 * 1e5;
int aux[N];

void interclasare(int v[], int st, int dr)
{
	int mij = (st + dr) / 2;
	int i = st, j = mij + 1, k = st;
	while (i <= mij && j <= dr)
	{
		if (v[i] <= v[j])
		{
			aux[k++] = v[i++];
		}
		else
		{
			aux[k++] = v[j++];
		}
	}
	while (i <= mij)
	{
		aux[k++] = v[i++];
	}
	while (j <= dr)
	{
		aux[k++] = v[j++];
	}
	for (int p = 0; p < k; p ++)
	{
		v[p] = aux[p];
	}
}
void ms(int v[], int st, int dr)
{
	if (st == dr)
	{
		return;
	}
	int mij = (st + dr) / 2;
	ms(v, st, mij);
	ms(v, mij + 1, dr);
	interclasare(v, st, dr);
}
int main()
{
	ifstream in("algsort.in");
	ofstream out("algsort.out");

	int v[N], n;
	in >> n;
	for (int i = 0; i < n; i ++)
	{
		in >> v[i];
	}

	ms(v, 0, n - 1);

	for (int i = 0; i < n; i ++)
	{
		out << v[i] << ' ';
	}

	return 0;
}