Forward-Backward Traversal

2018-07-26  本文已影响0人  swordofAltair

思想:从头部、尾部同时遍历,注意下标

例题:

42. Maximum Subarray II

45. Maximum Subarray Difference

50. Product of Array Exclude Itself

151. Best Time to Buy and Sell Stock III

363. Trapping Rain Water

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