随笔分类 -  algorithm

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Leetcode 211: Add and Search Word - Data structure design
摘要：Design a data structure that supports the following two operations: search(word) can search a literal word or a regular expression string containing o 阅读全文
posted @ 2018-02-14 04:51 逸朵 阅读(163) 评论(0) 推荐(0)
Inorder Successor in Binary Search Tree
摘要：Inorder Successor in Binary Search Tree 2.8 In Binary Tree, Inorder successor of a node is the next node in Inorder traversal of the Binary Tree. Inor 阅读全文
posted @ 2018-02-14 02:08 逸朵 阅读(220) 评论(0) 推荐(0)
Leetcode 272: Closest Binary Search Tree Value II
摘要：Given a non-empty binary search tree and a target value, find k values in the BST that are closest to the target. Note: Given target value is a floati 阅读全文
posted @ 2018-02-14 01:52 逸朵 阅读(322) 评论(0) 推荐(0)
Leetcode 270: Closest Binary Search Tree Value
摘要：Given a non-empty binary search tree and a target value, find the value in the BST that is closest to the target. Note: Given target value is a floati 阅读全文
posted @ 2018-02-13 12:18 逸朵 阅读(142) 评论(0) 推荐(0)
Leetcode 303: Range Sum Query - Immutable
摘要：Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. Example: Note: 阅读全文
posted @ 2018-02-11 09:31 逸朵 阅读(131) 评论(0) 推荐(0)
Facebook 近期面经
摘要：2017(10-12月) 码农类 博士 全职@Facebook - 猎头 - Onsite |Fail在职跳槽1. 1。 Laoyin. Validate BST. Regex matching。烙印给完题都举好多个例子，有拖延时间的嫌疑。regex那题本人做过但做不到秒杀，烙印非要我解释清楚再写c 阅读全文
posted @ 2018-02-11 09:29 逸朵 阅读(4807) 评论(0) 推荐(0)
Leetcode 280: Wiggle Sort
摘要：Given an unsorted array nums, reorder it in-place such that nums[0] <= nums[1] >= nums[2] <= nums[3].... For example, given nums = [3, 5, 2, 1, 6, 4], 阅读全文
posted @ 2018-02-11 08:49 逸朵 阅读(130) 评论(0) 推荐(0)
Lyft 面经
摘要：http://www.1point3acres.com/bbs/forum.php?mod=viewthread&tid=309636&extra=page%3D1%26filter%3Dlastpost%26orderby%3Dlastpost%26sortid%3D311%26sortid%3D 阅读全文
posted @ 2018-02-09 01:53 逸朵 阅读(683) 评论(0) 推荐(0)
Implement a thread safe FIFO queue
摘要：/**Implement a synchronized fifo queue - storage and two operations (read/write)Read: Block until a value can be returned. (Optional Timeout). FIFO se 阅读全文
posted @ 2018-02-06 05:37 逸朵 阅读(125) 评论(0) 推荐(0)
Leetcode 518: Coin Change 2
摘要：You are given coins of different denominations and a total amount of money. Write a function to compute the number of combinations that make up that a 阅读全文
posted @ 2018-02-05 08:41 逸朵 阅读(99) 评论(0) 推荐(0)
Leetcode 322: Coin Change
摘要：You are given coins of different denominations and a total amount of money amount. Write a function to compute the fewest number of coins that you nee 阅读全文
posted @ 2018-02-05 08:16 逸朵 阅读(238) 评论(0) 推荐(0)
Leetcode 692: Top K Frequent Words
摘要：Given a non-empty list of words, return the k most frequent elements. Your answer should be sorted by frequency from highest to lowest. If two words h 阅读全文
posted @ 2018-02-04 13:28 逸朵 阅读(160) 评论(0) 推荐(0)
Indeed 面经
摘要：给一个list， 如何把里面的字符分配到尽量少的子list里，并且每个子list没有重复元素。比如['a','b','c','a','a','b']， 可以分成['a', 'b', 'c'], ['a', 'b'], ['a']['a', 'a', 'a', 'b', 'b', 'b']，可以分成[ 阅读全文
posted @ 2018-02-04 13:27 逸朵 阅读(1186) 评论(0) 推荐(0)
Dropbox 面经
摘要：https://www.evernote.com/shard/s424/sh/2804d7e0-c93c-455d-9b79-027caa1750c5/48c247d32264b0e5739c5fc27c7eaff1 电面， 第一轮 ：Leetcode -> Game of life： 不需要in 阅读全文
posted @ 2018-02-04 08:10 逸朵 阅读(3546) 评论(0) 推荐(0)
Leetcode 377: Combination Sum IV
摘要：Given an integer array with all positive numbers and no duplicates, find the number of possible combinations that add up to a positive integer target. 阅读全文
posted @ 2018-02-01 10:49 逸朵 阅读(113) 评论(0) 推荐(0)
Leetcode 44: Wildcard Matching
摘要：Implement wildcard pattern matching with support for '?' and '*'. '?' Matches any single character. '*' Matches any sequence of characters (including 阅读全文
posted @ 2018-01-31 12:08 逸朵 阅读(102) 评论(0) 推荐(0)
Leetcode 206: Reverse Linked List
摘要：Reverse a singly linked list. 阅读全文
posted @ 2018-01-31 10:40 逸朵 阅读(107) 评论(0) 推荐(0)
Leetcode 23: Merge k Sorted Lists
摘要：Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 阅读全文
posted @ 2018-01-31 04:52 逸朵 阅读(124) 评论(0) 推荐(0)
Leetcode 273: Integer to English Words
摘要：Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 - 1. For example, 123 -> "One Hundre 阅读全文
posted @ 2018-01-31 02:03 逸朵 阅读(124) 评论(0) 推荐(0)
Leetcode 554: Brick Wall
摘要：There is a brick wall in front of you. The wall is rectangular and has several rows of bricks. The bricks have the same height but different width. Yo 阅读全文
posted @ 2018-01-30 13:10 逸朵 阅读(150) 评论(0) 推荐(0)

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