原创 網站下的robots
面試某軟，被面試官問道：你做爬蟲，知不知道很多網站下都有個robots文件？ 答曰：不知。 於是面試官給我演示了一遍~ 遂卒。首戰慘敗。 下來查了維基百科，基本瞭解robots。https
2020-07-03 18:08:37
原创 [LeetCode] Add Digits
Add Digits Given a non-negative integer num, repeatedly add all its digits until the result has only one digit. Fo
2020-07-03 18:08:37
1
原创 [LeetCode] Binary Tree Paths
Binary Tree Paths Given a binary tree, return all root-to-leaf paths. For example, given the following binary tr
2020-07-03 18:08:37
原创 [LeetCode] Group Anagrams
Group Anagrams Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate",
2020-07-03 18:08:37
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原创 京東城市時空數據引擎—JUST 如何通過軌跡數據恢復小區路網
雙十一將至，又到了網購的狂歡季！伴隨互聯網的高速發展，中國電子商務交易總額已從2008年的3.14萬億元增長至2018年的31.63萬億元，網上零售規模從0.13萬億元猛增到9萬億元，中國已成爲名副其實的“全球第一大網絡零售大國”。 與之
2020-07-03 18:08:27
原创 [LeetCode] N-Queens
N-Queens The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack
2020-02-26 04:52:03
原创 [LeetCode] Text Justification
Text Justification Given an array of words and a length L, format the text such that each line has exactly L charact
2020-02-26 04:52:03
原创 [LeetCode] Gas Station
Gas Station There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You ha
2020-02-26 04:52:03
原创 [LeetCode] Missing Number
Missing Number Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missin
2020-02-26 04:52:03
原创 [LeetCode] N-Queens II
N-Queens II Follow up for N-Queens problem. Now, instead outputting board configurations, return the total numb
2020-02-26 04:52:03
原创 揭祕京東城市時空數據引擎—JUST如何助力交通流量預測
2014年跨年夜上海外灘災難性踩踏事件，使得公共安全問題受到了全體社會的廣泛關注。解決這一問題的很重要一項工作就是：如何實時監控和快速預測城市中每個地方的人流量。當某個地方的人流量超過給定的值或者有超過給定值的趨勢時，相關部門能及
2020-02-26 04:52:03
原创 [LeetCode] Merge Intervals
Merge Intervals Given a collection of intervals, merge all overlapping intervals. For example, Given [1,3],[2,6],[8
2020-02-26 04:52:03
原创 [LeetCode] Different Ways to Add Parentheses
Different Ways to Add Parentheses Given a string of numbers and operators, return all possible results from computin
2020-02-26 04:52:03
原创 [LeetCode] Single Number III
Single Number III Given an array of numbers nums, in which exactly two elements appear only once and all the other
2020-02-26 04:52:03
原创 [LeetCode] Ugly Number
Ugly Number Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers wh
2020-02-26 04:52:03