Replace where ever question mark is there in a string with 0 and 1 with all the patterns created.

Example : input string "a??b?" outputs are a00b0,a00b1,a01b0, a01b1... like that all possiblities Here is the sample code for same

	#!/usr/bin/env python
	str = "a??b?"
	string = list(str)
	dictionary = {'?':['0','1']}
	results = list()
	result_str = ''
	start = -1
	def getResults(word, start):
	for element in word[start:]:
	start += 1
	if start == len(word):
	if element == '?':
	word[start-1] =dictionary[element][0]
	results.append(''.join(word))
	word[start-1] =dictionary[element][1]
	results.append(''.join(word))
	return
	results.append(''.join(word))
	return
	if element == '?':
	word[start-1] =dictionary[element][0]
	getResults(word, start)
	word[start-1] = dictionary[element][1]
	getResults(word, start)
	start = 0
	getResults(string, start)
	print results

view raw qmarkpattern.py hosted with ❤ by GitHub