#include<bits/stdc++.h>
using namespace std;
#define int long long
const int INF = 1e9;
int n,m;
int a[200005],dp[200005];
signed main()
{
ios_base::sync_with_stdio(0);cin.tie(0);
cin>>n>>m;
for(int i=1;i<=n;i++)
cin>>a[i];
if(a[1] > m)
{
a[1]=m;
dp[1]=1;
}
n++;
a[n]=0;
for(int i=2;i<=n;i++)
{
dp[i] = INF;
for(int j=i-1;j>0;j--)
{
if(a[j] >= a[i]-m)
{
dp[i] = min(dp[i], dp[j] + i-j-1);
}
else
{
}
}
}
cout<<dp[n];
return 0;
}
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