Chef works in a similar way to a travelling salesman ― he always travels to new cities in order to sell his delicious dishes.
Today, Chef is planning to visit $N$ cities (numbered $1$ through $N$). There is a direct way to travel between each pair of cities. Each city has a specific temperature; let's denote the temperature in the $i$-th city by $C_i$. Chef has a fixed temperature tolerance $D$ with the following meaning: for each pair of cities $a$ and $b$, he may travel from city $a$ directly to city $b$ only if $|C_a-C_b| \le D$, otherwise he would catch a heavy flu because of the sudden change in temperature.
Chef starts from city $1$. Is he able to visit all $N$ cities in such a way that each city is visited exactly once?
Notes:
- Chef is not able to travel through a city without visiting it.
- City $1$ is visited at the beginning.
- It is not necessary to be able to travel directly to city $1$ from the last city Chef visits.

-----Input-----
- The first line of the input contains a single integer $T$ denoting the number of test cases. The description of $T$ test cases follows.
- The first line of each test case contains two space-separated integers $N$ and $D$.
- The second line contains $N$ space-separated integers $C_1, C_2, \ldots, C_N$.

-----Output-----
For each test case, print a single line containing the string "YES" (without quotes) if Chef can visit all cities or "NO" (without quotes) if he cannot.

-----Constraints-----
- $1 \le T \le 1,000$
- $2 \le N \le 10^5$
- $0 \le D \le 10^9$
- $0 \le C_i \le 10^9$ for each valid $i$
- the sum of $N$ over all test cases does not exceed $10^6$

-----Subtasks-----
Subtask #1 (20 points):
- $N \le 1,000$
- the sum of $N$ over all test cases does not exceed $10,000$
Subtask #2 (80 points): original constraints

-----Example Input-----
2
5 3
3 2 1 4 5
5 4
10 1 3 2 9

-----Example Output-----
YES
NO

```python

USER_FILENAME = "<user_code>"
import sys, json, builtins
import math, heapq, bisect, itertools, functools, collections, statistics, fractions, decimal, operator, array, random, re, string, os, pathlib
try:
    import resource as _res
except Exception:
    _res = None
from collections import Counter, defaultdict, deque, OrderedDict
from functools import lru_cache, reduce
from itertools import accumulate, permutations, combinations, product
from math import gcd, ceil, floor, sqrt
from decimal import Decimal
try:
    from typing import *
except Exception:
    pass
try:
    sys.setrecursionlimit(1_000_000)
except Exception:
    pass
try:
    import site as _site
    try:
        _sys_sites = _site.getsitepackages() if hasattr(_site, "getsitepackages") else []
        for _p in _sys_sites:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
    try:
        _usp = _site.getusersitepackages()
        if isinstance(_usp, str):
            _usp = [_usp]
        for _p in _usp:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
except Exception:
    pass

ns = {"__name__": "__main__"}
for _k, _v in list(globals().items()):
    if not _k.startswith("_"):
        ns[_k] = _v
_CODE = "T=int(input())\nfor i in range(0,T):\n N,D=list(map(int,input().split()))\n s=[int(x) for x in input().split()]\n L=[]\n for j in range(0,len(s)):\n  L.append(j)\n arr=sorted(zip(s,L))\n #print(arr)\n ptr=-1\n for j in range(0,len(arr)):\n  if(arr[j][1]==0):\n   ptr=j\n   break\n\n if(N==1):\n  print('YES')\n else:\n  temp1=0\n  temp2=0\n  temp=0\n  for j in range(0,len(arr)-1):\n   if(abs(arr[j][0]-arr[j+1][0])>D):\n    temp=1\n    break\n\n  if(ptr!=0 and ptr!=len(arr)-1):\n   for j in range(0,ptr):   \n    if(abs(arr[j][0]-arr[j+2][0])>D):\n     temp1=1\n     break\n   if(temp1==1):\n    for j in range(ptr-1,len(arr)-2):\n     if(abs(arr[j][0]-arr[j+2][0])>D):\n      temp2=1\n      break\n\n  if(temp==0 and (temp1==0 or temp2==0)):\n   print('YES')\n  else:\n   print('NO')\n   \n"
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

```

Measured memory_bytes: 13849