2017年8月24日

LeetCode: 637 Average of Levels in Binary Tree

摘要： 题目： Given a non-empty binary tree, return the average value of the nodes on each level in the form of an array. Example 1: Input: 3 / \ 9 20 / \ 15 7 阅读全文

posted @ 2017-08-24 22:38 玲珑子 阅读(116) 评论(0) 推荐(0) 编辑

LeetCode: 496 Next Greater Element I(easy)

摘要： 题目： You are given two arrays (without duplicates) nums1 and nums2 where nums1’s elements are subset of nums2. Find all the next greater numbers for nu 阅读全文

posted @ 2017-08-24 09:40 玲珑子 阅读(121) 评论(0) 推荐(0) 编辑

LeetCode: 463 Island Perimeter(easy)

摘要： 题目： You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontall 阅读全文

posted @ 2017-08-24 08:59 玲珑子 阅读(144) 评论(0) 推荐(0) 编辑

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