python Find the longest substring without any number and at least one upper case character -


i've been stuck trying figure out how find longest substring no numbers , @ least 1 uppercase. when comes @ least 1 upper case. tried iterating on string , appending element new list. if element came number, tried see if of elements in new list had capital letter. appricated. thank

algorithm overview:

iterate on string, if see number add substring before number dictionary, key length of substring , value substring. return max-length substring.

the code follows:

def longestsubstring(s):     max_length = 0     tmp_length = 0     tmp_uppercase_count = 0     tmp_string = ""     strings = {}     nums = '0123456789'     s_length = len(s)     in range(s_length):         if s[i] not in nums:             if s[i].upper() == s[i]:                 tmp_uppercase_count += 1             tmp_length += 1             tmp_string += s[i]             if tmp_uppercase_count > 0 , == s_length - 1:                 strings[tmp_length] = tmp_string                 max_length = max(max_length, tmp_length)         else:             if tmp_uppercase_count > 0:                 strings[tmp_length] = tmp_string                 max_length = max(max_length, tmp_length)             tmp_length = 0             if != s_length - 1:                 tmp_string = ""                 tmp_uppercase_count = 0     if len(strings) == 0 , tmp_uppercase_count > 0:         return tmp_string     elif len(strings) == 0:         return ""     else:         return strings[max_length]

note instead of going shorter code, looked more time complexity. code runs in o(n) time.


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