A decimal number is called deci-binary if each of its digits is either 0 or 1 without any leading zeros. For example, 101 and 1100 are deci-binary, while 112 and 3001 are not. Given a string n that represents a positive decimal integer, return the minimum number of positive deci-binary numbers needed so that they sum up to n. Example 1: Input: n = "32" Output: 3 Explanation: 10 + 11 + 11 = 32 Example 2: Input: n = "82734" Output: 8 Example 3: Input: n = "27346209830709182346" Output: 9 Constraints: 1 <= n.length <= 105 n consists of only digits. n does not contain any leading zeros and represents a positive integer.