Encode and Decode Strings Leetcode Solution

encode-and-decode-strings.py

class Solution:
    """
    @param: strs: a list of strings
    @return: encodes a list of strings to a single string.
    """
    def encode(self, strs):
        _delim = "!@#$%^&*"
        delim = _delim
        check = "".join(strs)
        i = 1
        while delim in strs:
            delim += _delim
            i += 1
        return "#" * i + delim.join(strs)

    """
    @param: str: A string
    @return: dcodes a single string to a list of strings
    """
    def decode(self, s):
        delim = "!@#$%^&*"
        i = 0
        while s[i] == '#':
            i += 1
        return s[i:].split(delim * i)