怎么改都神秘WA的代码：

#include <bits/stdc++.h>
using namespace std;
int n, ans;
long long dist, p[100005];
int main() {
	cin >> n >> dist;
	for (int i = 1; i <= n; i++) cin >> p[i];
	sort(p + 1, p + n + 1);
	for (int i = 1; i <= n - 2; i++) {
		int j = i + 2;
		while (j <= n && p[j] - p[i] <= dist) j++;
		ans += (j - 1) - (i + 1);
	}
	cout << ans;
	return 0;
}