Chef has a binary array in an unsorted manner. Cheffina challenges chef to find the transition point in the sorted (ascending) binary array. Here indexing is starting from 0.
Note: Transition point always exists.

-----Input:-----
- First-line will contain $T$, the number of test cases. Then the test cases follow. 
- Each test case contains two lines of input, $N$.
- N space-separated binary numbers. 

-----Output:-----
For each test case, output in a single line answer.

-----Constraints-----
- $1 \leq T \leq 10$
- $1 \leq N \leq 10^5$

-----Sample Input:-----
1
5
0 1 0 0 1

-----Sample Output:-----
3

-----EXPLANATION:-----
binary array in sorted form will look like = [0, 0, 0, 1, 1]

Source: codechef | Difficulty: UNKNOWN_DIFFICULTY


Solutions:
for _ in range(int(input())):
	n = int(input())
	A = list(map(int, input().split()))
	A.sort()
	for i in range(len(A)):
		if A[i] == 1:
			print(i)
			break


for x in range(int(input())):
	n = int(input())
	S = list(map(int, input().split()))
	ind = n - sum(S)
	print(ind)


from sys import *
input = stdin.readline
t = int(input())
for _ in range(t):
	n = int(input())
	l = [int(x) for x in input().split()]
	l.sort()
	print(l.index(1))


list = []
x = int(input())
output = []
for i in range(x):
	count = 0
	val = int(input())
	line = input()
	z = line.split()
	z = [int(y) for y in z]
	for j in z:
		if j == 0:
			count += 1
	output.append(count)
for i in output:
	print(i)


try:
	for i in range(int(input())):
		n = int(input())
		l = sorted(list(map(int, input().split())))
		print(l.count(0))
except Exception:
	pass


t = int(input())
while t:
	n = int(input())
	l = list(map(int, input().split()))
	print(l.count(0))
	t = t - 1


T = int(input())
for i in range(T):
	n = int(input())
	a = list(map(int, input().split()))
	a.sort()
	for i in range(n):
		if a[i] != a[i + 1]:
			print(i + 1)
			break


for i in range(int(input())):
	size = int(input())
	num = list(map(int, input().split()))
	print(num.count(0))


def find(arr, n):
	for i in range(n):
		if arr[i] == 1:
			return i
	return -1
t = int(input())
for x in range(t):
	n = int(input())
	arr = list(map(int, input().split()))
	arr.sort()
	p = find(arr, n)
	if p >= 0:
		print(p)


t = int(input())
for i in range(t):
	n = int(input())
	l = list(map(int, input().split()))
	l.sort()
	x = l.index(1)
	print(x)


t = int(input())
for i in range(t):
	a = int(input())
	b = [int(b) for b in input().split()]
	b.sort()
	for j in range(len(b)):
		if b[j] == 0 and b[j + 1] == 1:
			print(j + 1)
			break


t = int(input())
for _ in range(t):
	n = int(input())
	arr = list(map(int, input().split()))
	arr.sort()
	i = 0
	while arr[i] != 1:
		i += 1
	print(i)


n = int(input())
for _ in range(n):
	m = int(input())
	lis = list(map(int, input().strip().split()))
	lis.sort()
	print(lis.index(1))


for _ in range(int(input())):
	n = int(input())
	a = list(map(int, input().split()))
	c = a.count(1)
	print(n - c)


t = int(input())
for i in range(t):
	n = int(input())
	l = [int(l) for l in input().split()]
	p = l.count(0)
	print(p)


from sys import stdin, stdout

def findTransitionPoint(arr, n):
	lb = 0
	ub = n - 1
	while lb <= ub:
		mid = int((lb + ub) / 2)
		if arr[mid] == 0:
			lb = mid + 1
		elif arr[mid] == 1:
			if mid == 0 or (mid > 0 and arr[mid - 1] == 0):
				return mid
			ub = mid - 1
	return -1
test = int(stdin.readline())
for _ in range(test):
	n = int(stdin.readline())
	arr = sorted(list(map(int, stdin.readline().split())))
	pp = findTransitionPoint(arr, n)
	print(pp)


t = int(input())
for i in range(t):
	N = int(input())
	lst = list(map(int, input().split()))
	count = 0
	lst.sort()
	for j in lst:
		if j == 0:
			count = count + 1
	print(count)


for _ in range(int(input())):
	n = int(input())
	l = list(map(int, input().split()))
	l.sort()
	for i in range(n - 1):
		if l[i] != l[i + 1]:
			print(i + 1)


testcases = int(input())
for x in range(testcases):
	N = map(int, input().split())
	A = sorted(list(map(int, input().split())))
	print(A.count(0))


def findTransitionPoint(arr, n):
	lb = 0
	ub = n - 1
	while lb <= ub:
		mid = int((lb + ub) / 2)
		if arr[mid] == 0:
			lb = mid + 1
		elif arr[mid] == 1:
			if mid == 0 or (mid > 0 and arr[mid - 1] == 0):
				return mid
			ub = mid - 1
	return -1
for _ in range(int(input())):
	n = int(input())
	nn = list(map(int, input().split(' ')))
	nn = sorted(nn)
	arr = nn
	n = len(arr)
	point = findTransitionPoint(arr, n)
	print(point)


t = int(input())
while t:
	n = int(input())
	a = []
	p = 0
	a = list(map(int, input().split()))
	for i in range(0, n):
		if a[i] == 0:
			p = p + 1
	print(p)
	t = t - 1