#include <algorithm>
#include <cctype>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <functional>
#include <iomanip>
#include <ios>
#include <iostream>
#include <iterator>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#ifdef DEBUG
#include <time.h>
#endif
#define all(a) (a).begin(), (a).end()
#define rev(a) (a).rbegin(), (a).rend()
#define F first
#define S second
int recur_depth = 0;
#ifdef DEBUG
#define dbg(x) \
{ \
++recur_depth; \
auto x_ = x; \
--recur_depth; \
cerr << string(recur_depth, '\t') << "\e[91m" << __func__ << ":" \
<< __LINE__ << "\t" << #x << " = " << x_ << "\e[39m" << endl; \
}
#else
#define dbg(x)
#endif
using namespace std;
using namespace __gnu_pbds;
typedef pair<int, int> ii;
typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> llll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pair<int, int>> vii;
typedef vector<vii> vvii;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<pair<ll, ll>> vll;
typedef vector<vll> vvll;
typedef vector<bool> vb;
template <class type1>
using ordered_set = tree<type1, null_type, less<type1>, rb_tree_tag,
tree_order_statistics_node_update>;
template <typename A, typename B>
ostream &operator<<(ostream &os, const pair<A, B> &p) {
return os << '(' << p.first << ", " << p.second << ')';
}
template <typename T_container, typename T = typename enable_if<
!is_same<T_container, string>::value,
typename T_container::value_type>::type>
ostream &operator<<(ostream &os, const T_container &v) {
os << '{';
string sep;
for (const T &x : v)
os << sep << x, sep = ", ";
return os << '}';
}
const ll MOD = 1e9 + 7;
// const ll MOD = 998244353;
const ll INF = 1e9;
const ld EPS = 1e-9;
const ll MX_ABS = 2e9 + 10;
struct SSTNode {
ll l, r, s;
SSTNode *l_child, *r_child;
SSTNode(ll l, ll r) : l(l), r(r), s(0), l_child(nullptr), r_child(nullptr) {}
SSTNode(ll l, ll r, SSTNode *left, SSTNode *right)
: l(l), r(r), l_child(left), r_child(right) {
s = max(left->s, right->s);
}
void upd(ll qi, ll val) {
if (!(l <= qi && qi <= r))
return;
if (l == r) {
s = max(val, s);
return;
}
ll mid = (l + r) / 2;
if (!l_child)
l_child = new SSTNode(l, mid);
if (!r_child)
r_child = new SSTNode(mid + 1, r);
l_child->upd(qi, val);
r_child->upd(qi, val);
s = max(l_child->s, r_child->s);
}
ll query(ll ql, ll qr) {
if (ql > r || l > qr)
return 0;
if (ql <= l && r <= qr)
return s;
if (!l_child)
l_child = new SSTNode(l, (l + r) / 2);
if (!r_child)
r_child = new SSTNode((l + r) / 2 + 1, r);
return max(l_child->query(ql, qr), r_child->query(ql, qr));
}
};
void solve() {
ll n, x;
cin >> n >> x;
vl a(n);
for (ll &x : a)
cin >> x;
auto query_seg = [](SSTNode *root, ll r) -> ll { return root->query(0, r); };
auto upd_seg = [](SSTNode *root, ll qi, ll val) { root->upd(qi, val); };
ll mx = 0;
auto do_it = [&]() {
SSTNode *root = new SSTNode(0, 1e9 + x + 1000);
SSTNode *rootpd = new SSTNode(0, 1e9 + x + 1000);
upd_seg(root, a[0], 1);
upd_seg(rootpd, a[0], 1), upd_seg(rootpd, a[0] + x, 1);
for (int i = 1; i < n; i++) {
ll mx = query_seg(root, a[i] - 1);
upd_seg(root, a[i], mx + 1);
ll nmx = max(mx, query_seg(rootpd, a[i] + x - 1));
upd_seg(rootpd, a[i] + x, nmx + 1);
upd_seg(rootpd, a[i], mx + 1);
}
mx = max(mx, rootpd->s);
};
do_it();
reverse(all(a));
for (ll &x : a)
x *= -1;
ll mn = *min_element(all(a)) - 1;
for (ll &x : a)
x -= mn;
do_it();
cout << mx << "\n";
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(NULL);
clock_t start = clock();
int test_cases = 1;
// cin >> test_cases;
while (test_cases--)
solve();
#ifdef DEBUG
cerr << fixed << setprecision(10)
<< "\nTime Taken: " << (double)(clock() - start) / CLOCKS_PER_SEC
<< "s\n";
#endif
return 0;
}
