''' Problem #1 Substrings: Given 2 strings a and b, write a function which determines if a is a sub string of b. For eg. 'shop' is a sub-string of 'shopify'. You can assume that both the strings contain only alphabets and no special characters and that they are case insensitive. i.e 'DAD', 'Dad' and 'dad' will be considered equal. ''' a = "aasnkshopify" b = "shop" def is_substring(a,b): len_a = len(a) len_b = len(b) for i in range(0,len_a): str1 = a[i:i+len_b] if str1 == b: return True return False print is_substring(a,b)
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