原创 leetcode刷題筆記-難題整理
315. Count of Smaller Numbers After Self class Node: def __init__(self, val): self.val = val self
2018-12-08 03:13:32
原创 leetcode刷題筆記-Greedy貪婪算法
45. Jump Game II 看完直接DP做， 倒數第二個test OTL。後改爲greedy, 思路其實差不多。
2018-11-22 11:00:47
原创 NLP-Text Classifiers for Sentiment Analysis
Overview 1.Text Classification: In this assignment, you will use scikit-learn, a machine learning toolkit in Python, to
2018-11-08 10:56:25
11
原创 leetcode刷題筆記-Monotonicqueue
239. Sliding Window Maximum https://www.youtube.com/watch?v=2SXqBsTR6a8 class Solution(object): def maxSlidingWi
2018-10-20 11:35:17
原创 leetcode刷題筆記-Parentheses
22. Generate Parentheses dfs stack Given n pairs of parentheses, write a function to generate all combinations of well
2018-10-15 10:38:58
3
原创 leetcode筆記-union find並查集
721. Accounts Merge class Solution(object): def init(self, accounts): self.parents = {} self.owne
2018-10-13 11:07:20
原创 leetcode刷題筆記-tire
211. Add and Search Word - Data structure design class TrieNode(): def __init__(self): self.children = col
2018-10-06 10:05:56
1
原创 leetcode刷題筆記-design
146. LRU Cache 解法一：OrderedDict ， 太好用了，但是時間複雜度不是O（1） class LRUCache(object): def __init__(self, capacity):
2018-10-03 10:30:06
2
原创 leetcode刷題筆記-binary search
74. Search a 2D Matrix class Solution(object): def searchMatrix(self, matrix, target): """ :type
2018-09-26 11:01:36
2
原创 Leetcode刷題筆記-分治法divide and conquer
395. Longest Substring with At Least K Repeating Characters Find the length of the longest substring T of a given str
2018-09-26 11:01:25
17
原创 Machine Learning Project1, KNN
Header Name: Shusen Wu OS: Win10 Language: Python3.6 Environment: Jupyter Notebook Cite Machine Learning in Action, Pet
2018-09-15 22:10:37
5
原创 Leetcode刷題筆記-sort
179. Largest Number class Solution(object): def largestNumber(self, nums): """ :type nums: List[i
2018-09-14 22:11:03
原创 Leetcode刷題筆記-不知道怎麼分類的題
36. Valid Sudoku class Solution(object): def isValidSudoku(self, board): """ :type board: List[
2018-09-14 22:11:03
原创 Leetcode刷題筆記-linklist
2. Add Two Numbers 一遍過，有點簡單無腦 class Solution(object): def addTwoNumbers(self, l1, l2): """ :type
2018-09-13 04:12:15
原创 leetcode刷題筆記-bit
136. Single Number 這題關鍵是最多的也只重複2次。 class Solution(object): def singleNumber(self, nums): """ :typ
2018-09-08 02:01:40
2