#include <iostream>
#include <vector>
#include <numeric>

using namespace std;

const int MAX_WEIGHT = 1000000;
const int SUM_UNIT = 1000;

int block(int weight) {
	return (weight - 1) / SUM_UNIT;
}

int headWeight(int block) {
	return block * SUM_UNIT + 1;
}

int main() {
	int n, k;
	cin >> n >> k;
	vector<int> w(n);
	for (int i = 0; i < n; ++i) {
		cin >> w[i];
	}
	vector<int> counts(1 + MAX_WEIGHT);
	vector<int> sums(MAX_WEIGHT / SUM_UNIT);
	for (int i = 0; i < n; ++i) {
		if (w[i] > 0) {
			int sum = accumulate(
				counts.begin() + w[i],
				counts.begin() + headWeight(block(w[i]) + 1),
				0);
			sum += accumulate(
				&sums[block(w[i])] + 1,
				&sums[block(MAX_WEIGHT)] + 1,
				0);
			if (sum < k) {
				++counts[w[i]];
				++sums[block(w[i])];
			}
		} else if (w[i] < 0) {
			if (counts[-w[i]] > 0) {
				--counts[-w[i]];
				--sums[block(-w[i])];
			}
		}
	}
	int result = accumulate(&sums[0], &sums[block(MAX_WEIGHT)] + 1, 0);
	cout << result << endl;
	return 0;
}