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ARRAY AND DISTINCT ELEMENTS
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Chef is multitalented but he mistakenly took part in 2 contest which will take place
at the same time. So while chef is busy at one cooking contest, he wants you to
take part in coding contest. Chef wants u to solve this program for him.

	

You have been given an array of size n. You have to calculate a subarray of size k
with maximum sum having distinct elements same as original array.

		
		

-----Input Format-----

First line contains no. of test cases. Second line contains n and k. Third line
contains array of n integers.


-----Output-----

Print maximum possible sum as stated in question

		
		

-----Example Text Case-----
Input:

1
10 6
8 8 3 5 3 8 5 7 7 7

Output:
37

Difficulty: UNKNOWN_DIFFICULTY

Solutions:
for _ in range(int(input())):
	(n, k) = list(map(int, input().split()))
	arr = list(map(int, input().split()))
	s = set(arr)
	t1 = len(s)
	max = -1
	for i in range(n - k + 1):
		temp = set(arr[i:i + k])
		t = len(temp)
		if t1 == t:
			if max < sum(arr[i:k + i]):
				max = sum(arr[i:k + i])
	print(max)


t = int(input())
for _ in range(t):
	n = list(map(int, input().split()))
	k = n[1]
	n = n[0]
	a = list(map(int, input().split()))
	m = -999999999999
	s1 = set(a)
	for i in range(0, n - k + 1):
		s = sum(a[i:i + k])
		if s > m and set(a[i:i + k]) == s1:
			m = s
	print(m)


for _ in range(int(input())):
	(n, k) = [int(x) for x in input().split()]
	a = list(map(int, input().split()))
	s = set(a)
	s = list(s)
	aa = []
	f = 0
	for i in range(n - k + 1):
		f = 0
		ss = a[i:i + k]
		for j in range(len(s)):
			if s[j] not in ss:
				f = 1
				break
		if f == 0:
			aa.append(sum(ss))
	print(max(aa))


try:
	tc = int(input())
	for i in range(tc):
		(n, k) = list(map(int, input().split(' ')))
		arr = list(map(int, input().split()))
		set_arr = set(arr)
		max_sum = 0
		for i in range(n):
			if set(arr[i:i + k]) == set_arr:
				max_sum = max(max_sum, sum(arr[i:i + k]))
		print(max_sum)
except:
	pass


for _ in range(int(input())):
	(n, k) = map(int, input().split())
	lst = list(map(int, input().split()))
	p = 0
	ele = 0
	for i in range(n - k + 1):
		x = lst[i:i + k]
		d = sum(x)
		dic = {j for j in set(x)}
		elm = len(dic)
		if elm >= ele:
			if ele > ele:
				p = d
			elif d > p:
				p = d
			ele = elm
	print(p)


import sys
t = int(input().strip())
for _ in range(t):
	(n, k) = map(int, input().strip().split())
	array = list(map(int, input().strip().split()))
	cifre = {}
	for el in array:
		cifre[el] = 0
	for i in range(k):
		cifre[array[i]] += 1
	flag = 0
	for key in cifre:
		if cifre[key] == 0:
			flag = 1
			break
	appo = sum(array[:k])
	somma = appo if flag == 0 else 0
	for i in range(0, n - k):
		appo += array[k + i] - array[i]
		cifre[array[i]] -= 1
		cifre[array[k + i]] += 1
		flag = 0
		for key in cifre:
			if cifre[key] == 0:
				flag = 1
				break
		if flag == 0:
			somma = max(somma, appo)
	print(somma)


t = int(input())
for i in range(t):
	(n, k) = list(map(int, input().split()))
	arr = list(map(int, input().split()))
	arr1 = list(set(arr))
	l = []
	res = 0
	sums = 0
	for i in range(k):
		l.append(arr[i])
		sums += arr[i]
	if len(list(set(l))) == len(arr1):
		res = max(res, sums)
	for i in range(k, n):
		sums += arr[i] - arr[i - k]
		l.remove(arr[i - k])
		l.append(arr[i])
		if len(list(set(l))) == len(arr1):
			res = max(res, sums)
	print(res)


from sys import stdin, stdout
input = stdin.readline
from collections import defaultdict as dd
import math

def geti():
	return list(map(int, input().strip().split()))

def getl():
	return list(map(int, input().strip().split()))

def gets():
	return input()

def geta():
	return int(input())

def print_s(s):
	stdout.write(s + '\n')

def solve():
	for _ in range(geta()):
		(n, k) = geti()
		a = getl()
		occur = dd(int)
		ans = 0
		temp = 0
		temp_dict = dd(int)
		for i in a:
			occur[i] += 1
		for i in range(k):
			temp += a[i]
			temp_dict[a[i]] += 1
		if list(temp_dict.keys()) == list(occur.keys()):
			ans = max(ans, temp)
		for i in range(k, n):
			temp -= a[i - k]
			temp_dict[a[i - k]] -= 1
			if temp_dict[a[i - k]] == 0:
				del temp_dict[a[i - k]]
			temp += a[i]
			temp_dict[a[i]] += 1
			if list(temp_dict.keys()) == list(occur.keys()):
				ans = max(ans, temp)
		print(ans)

def __starting_point():
	solve()
__starting_point()


for _ in range(int(input())):
	(n, k) = map(int, input().split())
	a = list(map(int, input().split()))
	b = len(set(a))
	m = []
	for i in range(n - k + 2):
		if b == len(set(a[i:i + k])):
			m.append(sum(a[i:i + k]))
	print(max(m))


for ts in range(int(input())):
	(n, k) = map(int, input().split())
	l = list(map(int, input().split()))
	c = len(set(l))
	su = []
	for i in range(n - k + 2):
		if len(set(l[i:i + k])) == c:
			su.append(sum(l[i:i + k]))
		else:
			pass
	print(max(su))


for u in range(int(input())):
	(n, k) = list(map(int, input().split()))
	l = list(map(int, input().split()))
	m = 0
	s = set(l)
	r = len(s)
	for i in range(n - k + 1):
		c = 0
		d = set()
		for j in range(i, i + k):
			c += l[j]
			d.add(l[j])
		if len(d) == r:
			m = max(m, c)
	print(m)


test = int(input())
for p in range(test):
	l = list(map(int, input().split()))
	n = l[0]
	k = l[1]
	l = []
	a = []
	maxim = 0
	l = list(map(int, input().split()))
	d = []
	for i in l:
		if i not in d:
			d.append(i)
	for i in range(0, len(l) - k + 1):
		x = l[i:i + k]
		flag = 0
		for j in d:
			if j not in x:
				flag = 1
				break
		if sum(x) > maxim and flag == 0:
			maxim = sum(x)
			a = x[:]
	print(maxim)


n = int(input())
while n > 0:
	line1 = [int(x) for x in input().split()]
	arr = [int(x) for x in input().split()]
	ac = len(set(arr))
	ln = line1[0]
	k = line1[1]
	i = 0
	j = k - 1
	maxi = -1
	while j < ln:
		if len(set(arr[i:j + 1])) == ac:
			maxi = max(maxi, sum(arr[i:j + 1]))
		i += 1
		j += 1
	print(maxi)
	n -= 1


x = int(input())
for i in range(x):
	(n, k) = map(int, input().split())
	l = list(map(int, input().split()))
	j = 0
	m = 0
	while j + k <= n:
		if m < sum(l[j:j + k]) and set(l[j:j + k]) == set(l):
			m = sum(l[j:j + k])
		j += 1
	print(m)


def f():
	(n, k) = list(map(int, input().split()))
	a = list(map(int, input().split()))
	distinctitem = len(set(a))
	count = [0] * 1000000
	temp = []
	maxi = 0
	s = 0
	c = 0
	for i in range(0, len(a)):
		if len(temp) < k:
			temp.append(a[i])
			if count[a[i]] == 0:
				count[a[i]] += 1
				c += 1
				s += a[i]
			else:
				count[a[i]] += 1
				s += a[i]
		if len(temp) == k:
			if c == distinctitem:
				maxi = max(maxi, s)
			s -= temp[0]
			count[temp[0]] -= 1
			if count[temp[0]] == 0:
				c -= 1
			temp.pop(0)
	print(maxi)
for i in range(int(input())):
	f()


t = int(input())
while t > 0:
	(n, k) = map(int, input().split())
	l = list(map(int, input().split()))
	dis = len(set(l))
	a = 0
	for i in range(n - k + 1):
		ls = []
		s = 0
		for j in range(k):
			s += l[i + j]
			if l[i + j] in ls:
				pass
			else:
				ls.append(l[i + j])
		if len(ls) == dis:
			a = max(a, s)
	print(a)
	t -= 1


for _ in range(int(input())):
	(n, k) = input().split()
	(n, k) = (int(n), int(k))
	nums = list(map(int, input().split()))
	length1 = len(set(nums))
	i = 0
	j = k - 1
	initial = sum(nums[i:j + 1])
	if len(set(nums)) == length1:
		m = initial
	else:
		m = 0
	while j < len(nums):
		j += 1
		if j == len(nums):
			break
		initial -= nums[i]
		i += 1
		initial += nums[j]
		if len(set(nums[i:j + 1])) == length1:
			m = max(m, initial)
	print(m)


t = int(input())
for z in range(t):
	first = list(map(int, input().split()))
	second = list(map(int, input().split()))
	length = len(set(second))
	req = 0
	sumi = 0
	for i in range(first[1]):
		req = req + second[i]
	if length == len(set(second[0:first[1]])):
		sumi = req
	cp = 0
	for i in range(first[1] + 1, first[0] + 1):
		req = req - second[cp] + second[i - 1]
		if length == len(set(second[cp + 1:i])):
			if sumi < req:
				sumi = req
		cp = cp + 1
	print(sumi)


while True:
	try:
		t = int(input())
		h = 1
		while h <= t:
			(n, k) = list(map(int, input().split()))
			lis = list(map(int, input().split()))
			unique_data = []
			for i in lis:
				if i not in unique_data:
					unique_data.append(i)
			maxi = 0
			lis2 = []
			for i in range(0, n - k + 1):
				lis2 = lis[i:i + k]
				t = 0
				for i in set(lis2):
					if i in unique_data:
						t += 1
				if t == len(unique_data):
					if sum(lis2) > maxi:
						maxi = sum(lis2)
			print(maxi)
			h += 1
	except:
		break


for _ in range(int(input())):
	(n, k) = list(map(int, input().split()))
	a = list(map(int, input().split()))
	slen = len(set(a))
	lmax = -9
	for i in range(n - k + 1):
		x = set(a[i:i + k])
		if len(x) == slen:
			add = sum(a[i:i + k])
			if add > lmax:
				lmax = add
	print(lmax)


T = int(input())
for t in range(T):
	(n, k) = map(int, input().split())
	arr = list(map(int, input().split()))
	out1 = set(arr)
	minSum = sum(arr[0:k])
	for i in range(1, n - k + 1):
		temp = arr[i:i + k]
		out = set(temp)
		if len(out) == len(out1):
			currentSum = sum(temp)
			if minSum < currentSum:
				minSum = currentSum
	print(minSum)


for _ in range(int(input())):
	(n, k) = map(int, input().split())
	a = list(map(int, input().split()))
	length = len(set(a))
	tot = sum(a[:k - 1])
	tmp = 0
	ans = 0
	for i in range(k - 1, n):
		tot += a[i] - tmp
		if len(set(a[i - k + 1:i + 1])) == length:
			ans = max(ans, tot)
		tmp = a[i - k + 1]
	print(ans)