

def max_(seq):
	max_n = seq[0]
	for item in seq[1:]:
		if item > max_n:
			max_n = item 
	return max_n


# Test
# Add your tests too!
tests = [[9017289, 782367, 736812903, 9367821, 71256716278, 676215, 2398, 0, 1], 
		 [19208, 9239, 4376, 738, 78, 51, 5, 6, 12, 78, 123, 65765, 1999999999],
		 [1, 2, 4, 7, 9]]

# checking our functions results
# with python's built-in max() function
for test_i in range(len(tests)):
	m = max_(tests[test_i])
	if m == max(tests[test_i]):
		print("Max number in array({}) -> ".format(test_i + 1) + str(m))
	else:
		print("Oops! Someting went wrong!") 
