EvanMeetTheWorld

摘要： Given a non-negative integer represented as non-empty a singly lin... 阅读全文

posted @ 2020-11-20 01:51 EvanMeetTheWorld 阅读(21) 评论(0) 推荐(0)

摘要：简单的不能再简单了但是第一次做的时候就是死心眼认准了只用一个指针 class Solution { public List... 阅读全文

posted @ 2020-11-19 10:49 EvanMeetTheWorld 阅读(17) 评论(0) 推荐(0)

摘要： swap in pairs class Solution { public ListNode swapPairs(ListNo... 阅读全文

posted @ 2020-11-19 09:35 EvanMeetTheWorld 阅读(27) 评论(0) 推荐(0)

摘要：要注意的点：注意题目说的是binary tree, binary search tree, 还是n-ary tree. 截止到现在... 阅读全文

posted @ 2020-11-19 04:09 EvanMeetTheWorld 阅读(29) 评论(0) 推荐(0)

摘要： follow up of LC116. we used to have a full binary tree but not now... 阅读全文

posted @ 2020-11-19 04:08 EvanMeetTheWorld 阅读(19) 评论(0) 推荐(0)

摘要： You are given a perfect binary tree where all leaves are on the sa... 阅读全文

posted @ 2020-11-19 03:28 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)

摘要： Given a binary tree, flatten it to a linked list in-place. althoug... 阅读全文

posted @ 2020-11-19 02:51 EvanMeetTheWorld 阅读(16) 评论(0) 推荐(0)

摘要： Given a binary tree containing digits from 0-9 only, each root-to-... 阅读全文

posted @ 2020-11-19 02:01 EvanMeetTheWorld 阅读(11) 评论(0) 推荐(0)

摘要：我们要记住一个原则虽然没有用而且造成很多困惑但是这个是“真理”。但是在实际写代码的时候会因此造成很多困惑。如果传入的是基本... 阅读全文

posted @ 2020-11-19 01:48 EvanMeetTheWorld 阅读(558) 评论(0) 推荐(0)

摘要： Given a non-empty binary tree, find the maximum path sum. For this... 阅读全文

posted @ 2020-11-19 01:00 EvanMeetTheWorld 阅读(18) 评论(0) 推荐(0)