''' The ternary numeric system is commonly used in Codeland, and to represent ternary numbers, the Tick alphabet is employed. In this system, the digit 0 is represented by ., 1 by -., and 2 by --. Your task is to decode a Tick-encoded string and determine the corresponding ternary number. Example 1 Input: .-.-- Output: 012 ''' class Solution(object): def solve(self, code:str)->str: tick_map = {'.': '0', '-.': '1', '--': '2'} i = 0 result = '' while i < len(code): if code[i] == '.': result += '0' i += 1 elif code[i:i+2] == '-.': result += '1' i += 2 elif code[i:i+2] == '--': result += '2' i += 2 return result # Usage s = Solution() print(s.solve("-.--.-.--"))