#include "elephants.h"
#include<bits/stdc++.h>
using namespace std;
int n,l;
multiset<int>s;
vector<int>p;
void init(int N, int L, int X[])
{
  n = N,l=L;
  p.resize(n);
  for(int i=0;i<n;i++){
    s.insert(X[i]);
    p[i]=X[i];
  }
}
int update(int i, int y)
{
  if(n==1) return 1;
  s.erase(p[i]);
  s.insert(y);
  p[i]=y;
  auto f=s.end();
  f--;
  int xf=*f,pos=*s.begin(),cont=0;
  while(pos<=xf){
    int sig=pos+l+1;
    auto it=s.lower_bound(sig);
    if(it==s.end()){
      pos=xf+1;
    }
    else{
      pos=*it;
    }
    cont++;
  }
  return cont;
}
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