dfs class Solution: def movingCount(self , threshold: int, rows: int, cols: int) -> int: # write code here、 def calc_thre(x,y): ans = 0 for i in str(x): ans += int(i) for i in str(y): ans += int(i) return ans <= threshold vis = [[0] * cols for _ in range(rows)] directions = [[0,1],[0,-1],[1,0]...