We want an array, but not just any old array, an array with contents!

Write a function that produces an array with the numbers `0` to `N-1` in it.

For example, the following code will result in an array containing the numbers `0` to `4`:

```
arr(5) // => [0,1,2,3,4]
```

Difficulty: EASY
Starter code: def arr(n=0):
	

Solutions:
def arr(n=0):
	return list(range(n))


def arr(n=0):
	return [i for i in range(n)]


def arr(n=0):
	aux = []
	for x in range(n):
		aux.append(x)
	return aux


def arr(n=int()):
	return list(range(int(), n))


arr = lambda n=0: list(range(n))


def arr(n=0):
	return [x for x in range(n)] if n > 0 else []


def arr(n=''):
	n = str(n)
	if len(n) == 0:
		return []
	n = int(n)
	array = []
	for i in range(n):
		array.append(i)
	return array


def arr(n=None):
	if n is None:
		return []
	result = []
	for i in range(0, n):
		result.append(i)
	return result


arr = lambda n=0: [i for i in range(n)]


def arr(n=0):
	if n == 0:
		return []
	else:
		return [i for i in range(n)]


def arr(n=0):
	arrey = []
	num = 0
	for i in range(n):
		arrey.append(num)
		num += 1
	return arrey


arr = lambda a=0: [*range(a)]


from typing import List, Tuple, Optional

def arr(*args: Optional[Tuple[int]]) -> List[int]:
	return list(range(0, *args))


arr = lambda n=0: [*range(n)]


arr = lambda _=0: [*range(_)]


def arr(n=0):
	arr = list()
	if n > 0:
		for i in range(0, n):
			arr.append(i)
	else:
		return []
	return arr


def arr(n=0):
	if n == None:
		return []
	if n == 0:
		return []
	if n == 1:
		return [0]
	else:
		return arr(n - 1) + [n - 1]


def arr(*n):
	try:
		return [*range(n[0])]
	except:
		return []


arr = lambda a=0: list(range(a))


def arr(n=0):
	arrays = []
	for x in range(n):
		arrays.append(x)
	return arrays


def arr(n=0):
	array = []
	for num in range(0, n):
		array.append(num)
	return array


def arr(n=0):
	myarray = []
	for i in range(0, n):
		myarray.append(i)
	return myarray


def arr(n=0):
	count = []
	for i in range(n):
		count.append(i)
	return count


def arr(n=0):
	list = []
	if n:
		for x in range(n):
			list.append(x)
	return list


def arr(n=0):
	tmp = []
	if n > 0:
		for j in range(0, n):
			tmp.append(j)
	return tmp


def arr(n=None):
	if n is None:
		return []
	new_arr = []
	for x in range(0, n):
		new_arr.append(x)
	return new_arr


def arr(*n):
	if len(n) == 0:
		x = 0
	else:
		x = n[0]
	return list(range(0, x))


def arr(n=None):
	if n == 0 or n == None:
		array = []
	else:
		array = [i for i in range(n)]
	return array


def arr(n=None):
	if n is None:
		return []
	L = []
	for i in range(n):
		L.append(i)
	return L


def arr(n=0):
	i = 0
	tab = []
	while i < n:
		tab.append(i)
		i += 1
	return tab


def arr(n=None):
	if not n:
		return []
	else:
		return [n for n in range(n)]


def arr(n=None):
	res = []
	if n == None:
		return res
	else:
		for i in range(n):
			res.append(i)
		return res


def arr(n=None):
	array = []
	if n is None:
		return array
	elif n >= 0:
		for i in range(n):
			array.append(i)
		return array


def arr(n=0):
	solution = []
	x = -1
	if n == 0:
		return []
	else:
		while len(solution) < n:
			x += 1
			solution.append(x)
	return solution


def arr(n=None):
	a = []
	if n is None:
		return a
	else:
		for i in range(n):
			a.append(i)
		return a


import numpy

def arr(n=0):
	return list(range(n))


def arr(n=0):
	array = []
	for i in range(n):
		array.append(i)
		i += 1
	return array


def arr(n=-1):
	if n == -1:
		return []
	else:
		return [num for num in range(n)]


def arr(n=0):
	lst = []
	for num in range(0, n):
		if num not in lst:
			lst.append(num)
		else:
			return ''
	return lst


def arr(n=0):
	lis = []
	if not n:
		return lis
	else:
		for i in range(0, n):
			lis.append(i)
		return lis


def arr(n=[]):
	if n == []:
		return []
	a = range(0, n)
	return list(a) if n > 0 else []


def arr(n=0):
	if n is None:
		return n
	return list(range(n))


def arr(n=-1):
	if n != -1:
		return [i for i in range(n)]
	else:
		return list()


def arr(n=0):
	test = []
	if n > 0:
		for i in range(n):
			test.append(i)
	return test


def arr(n=0):
	list = []
	for n in range(0, n):
		list.append(n)
	return list


def arr(n=0):
	a = []
	for i in range(n):
		a.append(i)
	return a
print(arr(4))
print(arr(0))
print(arr())


def arr(n=0):
	list = []
	while n != 0:
		list.append(n - 1)
		n -= 1
	list.sort()
	return list


def arr(n=0):
	i = 0
	ergebnis = []
	if n == ():
		return ergebnis
	else:
		while i < n:
			ergebnis.append(i)
			i = i + 1
		return ergebnis


def arr(*args):
	return [i for i in range(args[0])] if args else []


def arr(n=0):
	if n == 0 or n is None:
		return []
	else:
		return list(range(n))


def arr(n=0):
	if n == 0:
		return []
	elif n == '' in arr(n):
		return list(print(-1))
	else:
		return list(range(n))


def arr(n=''):
	if n == '':
		return []
	else:
		lista = []
		n = int(n)
		for i in range(n):
			caracter = int(i)
			lista.append(caracter)
		return lista


def arr(n: int=0) -> list:
	return [*list(range(n))] if n > 0 else []


def arr(n=0):
	array = []
	counter = 0
	while counter < n:
		array.append(counter)
		counter += 1
	return array


def arr(n=None):
	lst = []
	if n is None:
		return lst
	else:
		while n > 0:
			lst.append(n - 1)
			n -= 1
		return sorted(lst)


def arr(n=0):
	lst = []
	if n > 0:
		for n in range(n):
			lst.append(n)
		print(lst)
		return lst
	else:
		return lst
print(arr())


def arr(n=[]):
	if not n:
		return []
	else:
		return list(range(0, n))


def arr(n=None):
	l_1 = []
	if n is not None:
		for i in range(0, n):
			l_1.append(i)
	else:
		l_1 = []
	return l_1


def arr(*args):
	return [number for number in range(0, *args)]


def arr(n=None):
	if n is not None:
		return list(range(n))
	else:
		return []


def arr(n=0):
	array = []
	x = 0
	while x < n:
		array.append(x)
		x += 1
	return array


def arr(n=0):
	num_list = []
	if n < 1:
		return num_list
	else:
		for i in range(n):
			if i < n:
				num_list.append(i)
		return num_list


def arr(n=None):
	if n:
		return [i for i in range(n)]
	else:
		return []


arr = lambda n=0: [x for x in range(0, n)]


def arr(n=0):
	List = []
	for x in range(n):
		List.append(x)
	return List


def arr(n=[]):
	if n == []:
		answer = []
	else:
		answer = [n for n in range(n)]
	return answer


def arr(*n):
	try:
		return [i for i in range(n[0]) if n != 0]
	except IndexError:
		return []


def arr(n=None):
	array = []
	if n is not None and n >= 0:
		for i in range(n):
			array.append(i)
	return array


def arr(n=0):
	content = []
	if n > 0:
		for i in range(n):
			content.append(i)
	return content


def arr(n=0):
	xyu = []
	while n > 0:
		n -= 1
		xyu.append(n)
		xyu.sort()
	return xyu


def arr(n=0):
	print(type(n))
	array = []
	for x in range(n):
		array.append(x)
		print(type(array[x]))
	return array


def arr(n=0):
	i = 0
	a = []
	if n == 0:
		return []
	while i < n:
		a.append(i)
		i += 1
	return a


def arr(n=None):
	l = []
	if n == None or n == 0:
		return l
	for i in range(n):
		l.append(i)
	return l


def arr(n=0):
	tomb = []
	for i in range(n):
		tomb.append(i)
	return tomb


def arr(n=0):
	if not arr:
		return []
	new_list = []
	for element in range(n):
		new_list.append(element)
	return new_list


def arr(n=0):
	c = []
	for i in range(n):
		c.append(i)
	return c


def arr(*args):
	array = []
	if args:
		for i in range(args[0]):
			array.append(i)
	return array