2017年9月13日
413. Arithmetic Slices (Medium)
摘要： A sequence of number is called arithmetic if it consists of at least three elements and if the difference between any two consecutive elements is the 阅读全文
posted @ 2017-09-13 20:10 Yancea 阅读(191) 评论(0) 推荐(0)
540. Single Element in a Sorted Array (Medium)
摘要： Given a sorted array consisting of only integers where every element appears twice except for one element which appears once. Find this single element 阅读全文
posted @ 2017-09-13 18:59 Yancea 阅读(167) 评论(0) 推荐(0)
563. Binary Tree Tilt (Easy)
摘要： Given a binary tree, return the tilt of the whole tree. The tilt of a tree node is defined as the absolute difference between the sum of all left subt 阅读全文
posted @ 2017-09-13 18:23 Yancea 阅读(103) 评论(0) 推荐(0)