761. Special Binary String

Special binary strings are binary strings with the following two properties: - The number of 0's is equal to the number of 1's. - Every prefix of the binary string has at least as many 1's as 0's. You are given a special binary string s. A move consists of choosing two consecutive, non-empty, special substrings of s, and swapping them. Two strings are consecutive if the last character of the f