#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
#define int long long
const int N = 2e5 + 69;
const int M = 30 * N;
const int inf = 1e9 + 69;
int n, a[N], x, dp[N];
int st[M], root[N], lc[M], rc[M];
int node;
void Modify(int v, int v1, int l, int r, int p, int x) {
if (l == r)
st[v] = max(st[v1], x);
else {
int mid = (l + r) / 2;
if (p <= mid) {
lc[v] = ++node;
rc[v] = rc[v1];
Modify(lc[v], lc[v1], l, mid, p, x);
}
else {
rc[v] = ++node;
lc[v] = lc[v1];
Modify(rc[v], rc[v1], mid + 1, r, p, x);
}
st[v] = max(st[lc[v]], st[rc[v]]);
}
}
int Get(int v, int tl, int tr, int l, int r) {
if (tl > r || tr < l)
return 0;
else if (tl >= l && tr <= r)
return st[v];
else {
int mid = (tl + tr) / 2;
return max(Get(lc[v], tl, mid, l, r), Get(rc[v], mid + 1, tr, l, r));
}
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int tt = 1;
//cin >> tt;
while (tt--) {
cin >> n >> x;
for (int i = 1;i <= n;i++)
cin >> a[i];
int ans = 1;
for (int i = n;i >= 1;i--) {
root[i] = ++node;
int x = Get(root[i + 1], 1, inf, a[i] + 1, inf) + 1;
Modify(root[i], root[i + 1], 1, inf, a[i], x);
}
vector<int> dp(n, inf);
int s = 0;
auto Solve = [&](vector<int> a) {
int r = 0;
vector<int> dp(n, 1e9);
for (int i = 0;i < n;i++) {
auto u = lower_bound(dp.begin(), dp.end(), a[i]) - dp.begin();
if (dp[u] == 1e9)
r++;
dp[u] = a[i];
}
return r;
};
for (int i = 1;i <= n;i++) {
auto u = lower_bound(dp.begin(), dp.end(), a[i]) - dp.begin();
if (dp[u] == inf)
s++;
dp[u] = a[i];
int r = s + Get(root[i + 1], 1, inf, a[i] - x + 1, inf);
vector<int> b;
for (int j = 1;j <= n;j++)
b.push_back(a[j]);
for (int j = 1;j <= i;j++)
b[j - 1] -= x;
assert(r == Solve(b));
ans = max(ans, r);
}
cout << ans << '\n';
}
return 0;
}
