Cod sursa(job #2641729)

Utilizator mirceamaierean41Mircea Maierean mirceamaierean41 Data 12 august 2020 16:27:39
Problema Radix Sort Scor 70
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.81 kb
#include <fstream>
#include <vector>

std::ifstream fin("radixsort.in");
std::ofstream fout("radixsort.out");

const int bits = 8;
const int sz = (1 << bits);
const int mask = sz - 1;

std::vector <int> v;
int n, a, b, c;

void radix()
{
	std::vector <int> aux(n);
	for (int i = 0; i < 4; ++i)
	{
		std::vector <int> cnt(sz, 0);
		for (auto it : v)
			++cnt[(it >> (bits * i)) & mask];
		for (int j = 1; j < sz; ++j)
			cnt[j] += cnt[j - 1];
		for (int j = n - 1; j >= 0; --j)
			aux[--cnt[(v[j] >> (bits * i)) & mask]] = v[j];
		v = aux;
	}
}

int main()
{
	fin >> n >> a >> b >> c;
	v.reserve(n);
	v.push_back(b);
	for (int i = 1; i < n; ++i)
		v.push_back((1LL * v.back() * a + b) % c);

	radix();

	for (int i = 0; i < n; i += 10)
		fout << v[i] << " ";
	fout.close();
	return 0;
}