https://leetcode.com/problems/output-contest-matches/description/

output-contest-matches.py

class Solution(object):
    def findContestMatch(self, n):
        """
        :type n: int
        :rtype: str
        """
        def wrap_thing(a, b):
            return '({},{})'.format(a,b)
        to_wrap = [i for i in range(1,n+1)]
        while len(to_wrap) > 1:
            new_wrap = []
            while to_wrap:
                new_wrap.append(wrap_thing(to_wrap.pop(0), to_wrap.pop()))
            to_wrap = new_wrap            
        return to_wrap[0]