# # # @param arr int整型一维数组 the array # @return int整型 # class Solution: def maxLength(self , arr ): # write code here right = 0 left = 0 maxLen = -1 dic = {} a = len(arr) while right < a: if arr[right] not in dic: dic[arr[right]] = right maxLen = max(maxLen, right - left +1) right += 1 else: dic.p...