#include "towers.h"
#include<bits/stdc++.h>
#define pb push_back
#define pf push_front
//#define mp make_pair
#define F first
#define S second
#define ff first
#define ss second
#define str string
#define ll int
#define ull unsigned ll
#define ld long double
#define pll pair<ll,ll>
#define plll pair<ll,pll>
#define pllll pair<pll,pll>
#define pld pair<ld,ld>
#define vl vector<ll>
#define vll vector<pll>
#define vlll vector<plll>
#define vllll vector<pllll>
#define vb vector<bool>
#define sz size()
#define fr front()
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define bk back();
//#pragma GCC target( "sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")
using namespace std;
const ld pi=acos(-1.0);
const ll e5=1e5;
const ll e6=1e6;
const ll e9=1e9;
const ll inf=1e9;
const ll mod=1e9+7;
const ll mod2=998244353;
//const ll MOD=106710087877475399;
const ll N=2e3+10;
ll bpm(ll x,ll y,ll m){if(y==0)return 1%m;if(y==1)return x%m;ll p=bpm(x,y/2,m);
if(y%2==0)return p*p%m;else return p*p%m*x%m;}
ll bp(ll x,ll y){if(y==0)return 1;if(y==1)return x;ll p=bp(x,y/2);
if(y%2==0)return p*p;else return p*p*x;}
ll a[N],dp[N];
void init(int N, std::vector<int> H){
    for(ll i=0;i<N;i++){
        a[i]=H[i];
    }
}
int max_towers(int L, int R, int D){
    dp[L]=1;
    ll ans=1;
    for(ll i=L+1;i<=R;i++){
      dp[i]=1;
      ll mx=0;
      for(ll j=i-1;i>=L;i--){
        if(mx-D>=a[i]&&mx-D>=a[j]) dp[i]=max(dp[i],dp[j]+1);
        mx=max(mx,a[j]);
      }
      ans=max(ans,dp[i]);
    }
    return ans;
}