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题目： Given a non-negative integer c, your task is to decide whether there're two integers a and b such that a2 + b2 = c. Example 1: Example 2: 分析： 给定一个 阅读全文
posted @ 2019-04-21 23:52
silentteller
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题目： Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others a 阅读全文
posted @ 2019-04-21 23:24
silentteller
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题目： Given an integer array, find three numbers whose product is maximum and output the maximum product. Example 1: Example 2: 分析： 给定一个数组，返回其中三个元素乘积的最大 阅读全文
posted @ 2019-04-21 00:55
silentteller
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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: Note: 分析： 题目很好理解，就是求二叉树每一层的 阅读全文
posted @ 2019-04-21 00:12
silentteller
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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 @ 2019-04-21 00:01
silentteller
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