Function compare_string

boolean_algebra/quine_mc_cluskey.py:1–11

(string1, string2)

def compare_string(string1, string2):
	l1 = list(string1); l2 = list(string2)
	count = 0
	for i in range(len(l1)):
		if l1[i] != l2[i]:
			count += 1
			l1[i] = '_'
	if count > 1:
		return -1
	else:
		return("".join(l1))

def check(binary):
	pi = []