HTMLify

class Solution:
    def lastStoneWeight(self, stones: list[int]) -> int:
        stones.sort()
        print(stones)
        while len(stones) > 1:
            y = stones.pop()
            x = stones.pop()
            if x == y:
                continue
            else:
                stones.append(y - x)
                stones.sort()
        return stones[0] if stones else 0