摘要:
题目描述: 方法一: class FindElements: def __init__(self, root: TreeNode): self.d = set() def f(r, x): if r: self.d.add(x) r.val = x f(r.left, 2 * x + 1) f(r. 阅读全文
摘要:
题目描述: 自己的提交: class Solution: def shiftGrid(self, grid: List[List[int]], k: int) -> List[List[int]]: m,n = len(grid),len(grid[0]) while k: tmp = [[0] * 阅读全文