#define DEBUG 0
#include <bits/stdc++.h>
using namespace std;
#if DEBUG
// basic debugging macros
int __i__,__j__;
#define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl
#define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl
#define printVar(n) cout<<#n<<": "<<n<<endl
#define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl
#define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;}
#define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;}
// advanced debugging class
// debug 1,2,'A',"test";
class _Debug {
public:
template<typename T>
_Debug& operator,(T val) {
cout << val << endl;
return *this;
}
};
#define debug _Debug(),
#else
#define printLine(l)
#define printLine2(l,c)
#define printVar(n)
#define printArr(a,l)
#define print2dArr(a,r,c)
#define print2dArr2(a,r,c,l)
#define debug
#endif
// define
#define MAX_VAL 999999999
#define MAX_VAL_2 999999999999999999LL
#define EPS 1e-6
#define mp make_pair
#define pb push_back
// typedef
typedef unsigned int UI;
typedef long long int LLI;
typedef unsigned long long int ULLI;
typedef unsigned short int US;
typedef pair<int,int> pii;
typedef pair<LLI,LLI> plli;
typedef vector<int> vi;
typedef vector<LLI> vlli;
typedef vector<pii> vpii;
typedef vector<plli> vplli;
// ---------- END OF TEMPLATE ----------
int t[200000];
vi v[2];
int main() {
int i;
int n,x;
scanf("%d %d",&n,&x);
for (i = 0; i < n; i++) scanf("%d",&t[i]);
int ans = 0;
v[0].pb(t[0]),v[1].pb(t[0]);
for (i = 1; i < n; i++) {
int p0 = lower_bound(v[0].begin(),v[0].end(),t[i])-v[0].begin();
if (p0 == v[0].size()) v[0].pb(t[i]);
else v[0][p0] = t[i];
int p1 = lower_bound(v[1].begin(),v[1].end(),t[i]+x)-v[1].begin();
if (p1 == v[1].size()) v[1].pb(t[i]+x);
else v[1][p1] = t[i]+x;
if ((p0 >= v[1].size()) || (v[0][p0] < v[1][p0])) {
if (p0 >= v[1].size()) v[1].pb(0);
v[1][p0] = v[0][p0];
}
}
printf("%d\n",(int) v[1].size());
return 0;
}
