#include "bits/stdc++.h"
#define F first
#define S second
#define ll long long
#define pii pair<int,int>
const int mxN = 3e5 + 5;
const int mod = 1e9 + 7;
using namespace std;
int dp[mxN];
int a[mxN];
int n,d;
int t[mxN];
signed main(){
cin >>n>>d;
for(int i = 1;i <= n;i++) cin >>a[i];
int ans = 0;
for(int i = 1;i <= n;i++){
dp[i] = 1;
t[i] = i;
for(int j = 1;j < i;j++){
if(i - t[j] <= d){
if(a[j] >= a[i]) t[j] = i;
else{
dp[i] = max(dp[i],dp[j] + 1);
}
}
}
ans = max(ans,dp[i]);
}
cout<<ans;
}
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