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# Definition for singly-linked list.class ListNode: def __init__(self, x): self.val = x self.next = Noneclass Solution: # @return ... 阅读全文
摘要：
# Definition for a binary tree nodeclass TreeNode: def __init__(self, x): self.val = x self.left = None self.right = Noneclas... 阅读全文
摘要：
class Solution: # @param matrix, a list of lists of integers # RETURN NOTHING, MODIFY matrix IN PLACE. def setZeroes(self, matrix): di... 阅读全文