#include <bits/stdc++.h>
using namespace std;
#define fast ios_base::sync_with_stdio();cin.tie();cout.tie();
#define en cout<<endl;
#define ops cout<<"ops"<<endl;
#define line cout<<"---------------------------"<<endl;
#define fi first
#define se second
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pllll;
typedef string str;
const ll DIM = 2e5 + 7;
const ll DIMM = 5e4 + 7;
const ll DDIM = 7;
const ll INF = 1e18 + 7;
const ll X = 1e5 + 7;
const ll BS = 2e5 + 7;
const ll AS = 26 + 7;
const ll MODULO = 1e9 + 7;
ll nt,n,m,k,q;
ll a[DIM];
ll d1[DIM],d2[DIM],pos[DIM],pr[DIM];
ll l,r,mid;
ll l1;
ll res;
int main()
{
fast;
//ll x1,y1,x2,y2;
cin>>n>>m;
for(int i=1;i<=n;i++)cin>>a[i];
d1[0]=(-INF);
d2[0]=INF;
for(int i=1;i<=n;i++){
d1[i]=INF;
d2[i]=(-INF);
}
for(int i=1;i<=n;i++){
l=0;r=i-1;
while(l<r){
mid=(l+r+1)/2;
if(d1[mid]<a[i])l=mid;
else r=mid-1;
}
pos[i]=l+1;
pr[i]=d1[l+1];
d1[l+1]=a[i];
}
res=(-INF);
for(ll i=1;i<=n;i++)
if(d1[i]!=INF)res=max(res,i);
if(m==0){
cout<<res<<endl;
return 0;
}
for(int i=n;i>=1;i--){
d1[pos[i]]=pr[i];
a[i]+=m;
l=0;r=n-i;
while(l<r){
mid=(l+r+1)/2;
if(d2[mid]>a[i])l=mid;
else r=mid-1;
}
if(d2[l]>a[i] && a[i]>d2[l+1])d2[l+1]=a[i];
l1=l+1;
l=0;r=i-1;
while(l<r){
mid=(l+r+1)/2;
if(d1[mid]<a[i])l=mid;
else r=mid-1;
}
res=max(res,(l1+l));
}
cout<<res<<endl;
return 0;
}
