Facebook Data Engineer 持续准备中。。。Fighting

Welcome leonard_cohen! You have solved 11/ 448 problems.

Number of 1 Bits

补昨天的 昨天忘了发 added by 4
.1point3acres现在用的是1刷的session
Welcome boyang4! You have solved 117/ 448 problems. (manage sessions) $23
dfs_$339_review_NestedListWeightSum 5m
dfs_$364_review_NestedListWeightSum2 10m
tree_$366_todo_FindLeavesofBinaryTree
bs_367_ok_ValidPerfectSquare


补充内容 (2016-12-28 03:42):
217/448 打错

Welcome yangluphil! You have solved 328/ 448 problems. (manage sessions) +1

92        Reverse Linked List II                  29.8%        Medium  在discussion发了一个detailed post
. 1point 3 acres
.1point3acres补充内容 (2016-12-28 12:32):
Welcome yangluphil! You have solved 330/ 448 problems. (manage sessions) +2
126        Word Ladder II   13.6%        Hard  很麻烦，800ms，以后改进
81        Search in Rotated Sorted Array II   32.9%        Medium 很练bug free

Welcome dongning! You have solved 153/ 448 problems. (manage sessions) +1
Permutations II

今天时间都砸在 设置docker和 aws 上了

谢谢群主的分享

Welcome leonard_cohen! You have solved 13/ 448 problems.

Welcome yangluphil! You have solved 334/ 448 problems. (manage sessions) +4

240        Search a 2D Matrix II                  37.8%        Medium  这题用binary search反而慢，不好
. From 1point 3acres bbs74        Search a 2D Matrix                  35.6%        Medium
317        Shortest Distance from All Buildings                  33.2%        Hard
187        Repeated DNA Sequences                  29.4%        Medium  考察memory efficiency，比较独特

Welcome boyang4! You have solved 217/ 448 problems. (manage sessions) $26 added by 3
d_464_todo_CanIWin 有case没过 没懂为什么 不知道自己做的有啥毛病
. array_$246_review_StrobogrammaticNumber 8m
array_$247_bug_StrobogrammaticNumber2 20m
design_$251_bugscode_Flatten2DVector bugs

Welcome dongning! You have solved 160/ 448 problems. (manage sessions) +6
Two Sum III - Data structure design (虽然是 easy，但是要求写的不清不楚，换了两个版本才过)
Convex Polygon
Range Sum Query 2D - Immutable
Multiply Strings (目前的做法不够快50%，下轮换个方法)
Generate Parentheses
Minimum Path Sum

补充内容 (2016-12-29 13:29):
这篇文章：
https://www.python.org/doc/essays/list2str/
对优化 Python 代码很有帮助

Welcome yangluphil! You have solved 336/ 448 problems. (manage sessions) +2

二刷：
50        Pow(x, n)   27.1%        Medium  用位运算做了一遍
300        Longest Increasing Subsequence                  37.2%        Medium        经典题，为了russian doll重刷一遍

324        Wiggle Sort II   25.1%        Medium  这题内容真多，简单做法非常直接，但是follow up要用各种技巧，绝对hard难度，需要重做一遍
354        Russian Doll Envelopes   31.6%        Hard