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diamond.java
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diamond.java
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import java.util.*;
import java.io.*;
public class diamond {
static class Solver {
void solve(InputReader in, PrintWriter out) throws Exception {
// Here goes your code
int n = in.nextInt();
int k = in.nextInt();
ArrayList<Integer> diamonds = new ArrayList<Integer>();
ArrayList<Integer> counts = new ArrayList<Integer>();
for (int i = 0; i < n; i++) {
diamonds.add(in.nextInt());
}
Collections.sort(diamonds);
for (int i = 0; i < n; i++) {
counts.add(count(diamonds, diamonds.get(i), i, k));
}
out.print(Collections.max(counts));
}
}
public static int count(ArrayList<Integer> d, int start, int idx, int k) {
int ans = 1;
for (int i = idx + 1; i < d.size(); i++) {
if (d.get(i) - start <= k) {
ans++;
}
}
return ans;
}
public static void main(String... args) throws Exception {
InputReader in = new InputReader("diamond" + ".in");
PrintWriter out = new PrintWriter("diamond" + ".out");
new Solver().solve(in, out);
out.close();
in.close();
}
static class InputReader {
BufferedReader reader;
StringTokenizer tokenizer;
InputReader(InputStream is) throws Exception {
reader = new BufferedReader(new InputStreamReader(is));
}
InputReader(String inFilePath) throws Exception {
this(new FileInputStream(inFilePath));
}
InputReader() throws Exception {
this(System.in);
}
String next() throws Exception {
while (tokenizer == null || !tokenizer.hasMoreTokens()) {
tokenizer = new StringTokenizer(reader.readLine());
}
return tokenizer.nextToken();
}
String nextLine() throws Exception {
return reader.readLine();
}
int nextInt() throws Exception {
return Integer.parseInt(next());
}
long nextLong() throws Exception {
return Long.parseLong(next());
}
double nextDouble() throws Exception {
return Double.parseDouble(next());
}
void close() throws Exception {
reader.close();
}
}
}