2020
02-20
02-20
[LeetCode每日一题]100. Same Tree
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题目如下：
Given two binary trees, write a function to check if they are the same or not.
Two binary trees are considered the same if they are structurall.... Read More >
分类目录归档：算法
题目如下：
Given two binary trees, write a function to check if they are the same or not.
Two binary trees are considered the same if they are structurall.... Read More >
题目如下:
Two elements of a binary search tree (BST) are swapped by mistake.
Recover the tree without changing its structure.
LeetCode-99 Recover Binary.... Read More >
2019
07-13
07-13
LeetCode-1 Two Sum 解析
题目:
给定一个整数数组 nums 和一个目标值 target，请你在该数组中找出和为目标值的那 两个 整数，并返回他们的数组下标。
你可以假设每种输入只会对应一个答案。但是，你不能重复利用这个数组中同样的元素。
示例:
[go]给定 nums = [2, 7, 11, 15], target = 9
因为 nums[0] + nums[1] = 2 + 7 = 9
所以返回 [0, 1.... Read More >