04 2016 档案

114. Flatten Binary Tree to Linked List
摘要：Given a binary tree, flatten it to a linked list in-place. For example,Given 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 阅读全文
posted @ 2016-04-30 13:52 新一代的天皇巨星 阅读(129) 评论(0) 推荐(0)
62. Unique Paths && 63. Unique Paths II
摘要：A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either down or right at any p 阅读全文
posted @ 2016-04-28 11:38 新一代的天皇巨星 阅读(158) 评论(0) 推荐(0)
224. Basic Calculator && 227. Basic Calculator II
摘要：224. Basic Calculator Implement a basic calculator to evaluate a simple expression string. The expression string may contain open ( and closing parent 阅读全文
posted @ 2016-04-27 13:42 新一代的天皇巨星 阅读(175) 评论(0) 推荐(0)
150. Evaluate Reverse Polish Notation
摘要：Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand may be an integer or another e 阅读全文
posted @ 2016-04-27 13:01 新一代的天皇巨星 阅读(139) 评论(0) 推荐(0)
179. Largest Number
摘要：Given a list of non negative integers, arrange them such that they form the largest number. For example, given [3, 30, 34, 5, 9], the largest formed n 阅读全文
posted @ 2016-04-26 14:10 新一代的天皇巨星 阅读(149) 评论(0) 推荐(0)
179. Largest Number
摘要：Given a list of non negative integers, arrange them such that they form the largest number. Given a list of non negative integers, arrange them such t 阅读全文
posted @ 2016-04-25 13:46 新一代的天皇巨星 阅读(117) 评论(0) 推荐(0)
141. Linked List Cycle && 142. Linked List Cycle II
摘要：141. Linked List Cycle Given a linked list, determine if it has a cycle in it. 142. Linked List Cycle II 142. Linked List Cycle II Given a linked list 阅读全文
posted @ 2016-04-25 13:04 新一代的天皇巨星 阅读(280) 评论(0) 推荐(0)
148. Sort List
摘要：Sort a linked list in O(n log n) time using constant space complexity. Hide Tags Linked List Sort Hide Similar Problems (E) Merge Two Sorted Lists (M) 阅读全文
posted @ 2016-04-25 09:21 新一代的天皇巨星 阅读(157) 评论(0) 推荐(0)
198. House Robber && 213. House Robber II && 337. House Robber III
摘要：198. House Robber You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only cons 阅读全文
posted @ 2016-04-22 14:05 新一代的天皇巨星 阅读(1483) 评论(0) 推荐(0)
24. Swap Nodes in Pairs
摘要：Given a linked list, swap every two adjacent nodes and return its head. For example,Given 1->2->3->4, you should return the list as 2->1->4->3. Your a 阅读全文
posted @ 2016-04-20 23:23 新一代的天皇巨星 阅读(147) 评论(0) 推荐(0)
Parameterized Type
摘要：Type will be erased by compiler. So you cannot check against the parametized check as below. Code: Compiler warning message: Output: How to get the pa 阅读全文
posted @ 2016-04-15 05:58 新一代的天皇巨星 阅读(327) 评论(0) 推荐(0)
70. Climbing Stairs
摘要：You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you cl 阅读全文
posted @ 2016-04-14 13:45 新一代的天皇巨星 阅读(146) 评论(0) 推荐(0)
121. Best Time to Buy and Sell Stock && 122. Best Time to Buy and Sell Stock II && 123. Best Time to Buy and Sell Stock III && 309. Best Time to Buy and Sell Stock with Cooldown
摘要：121. Best Time to Buy and Sell Stock Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitte 阅读全文
posted @ 2016-04-14 13:31 新一代的天皇巨星 阅读(308) 评论(0) 推荐(0)
234. Palindrome Linked List
摘要：Given a singly linked list, determine if it is a palindrome. Follow up:Could you do it in O(n) time and O(1) space? Linked List Two Pointers With extr 阅读全文
posted @ 2016-04-14 13:20 新一代的天皇巨星 阅读(239) 评论(0) 推荐(0)
206. Reverse Linked List
摘要：Reverse a singly linked list. click to show more hints. Hint: A linked list can be reversed either iteratively or recursively. Could you implement bot 阅读全文
posted @ 2016-04-13 13:19 新一代的天皇巨星 阅读(112) 评论(0) 推荐(0)
21. Merge Two Sorted Lists && 23. Merge k Sorted Lists
摘要：21. Merge Two Sorted Lists Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of th 阅读全文
posted @ 2016-04-12 13:15 新一代的天皇巨星 阅读(153) 评论(0) 推荐(0)
Scala multiple inheritance. Mixin order v.s. Super order.
摘要：Code is everything: 阅读全文
posted @ 2016-04-10 05:45 新一代的天皇巨星 阅读(182) 评论(0) 推荐(0)
257. Binary Tree Paths
摘要：Given a binary tree, return all root-to-leaf paths. For example, given the following binary tree: 1 / \ 2 3 \ 5 All root-to-leaf paths are: ["1->2->5" 阅读全文
posted @ 2016-04-09 12:55 新一代的天皇巨星 阅读(161) 评论(0) 推荐(0)