HTMLify

class Solution:
    def countLargestGroup(self, n: int) -> int:
        groups = {}
        l = 0
        for i in range(1, n+1):
            s = 0
            for d in str(i):
                s += int(d)
            if s not in groups.keys():
                groups[s] = []
            groups[s].append(i)
            tl = len(groups[s])
            if tl > l:
                l = tl
        c = 0
        for group in groups.values():
            if len(group) == l:
                c += 1
        return c