Leetcode Solution

2018.08.26 - 2018.09.23

count	number	title	difficult
1	701	Insert into a Binary Search Tree	Medium
2	709	To Lower Case	Easy
3	807	Max Increase to Keep City Skyline	Medium
4	835	Image Overlap	Medium
5	841	Keys and Rooms	Medium
6	846	Hand of Straights	Medium
7	848	Shifting Letters	Medium
8	851	Loud and Rich	Medium
9	856	Score of Parentheses	Medium
10	861	Score After Flipping Matrix	Medium
11	863	All Nodes Distance K in Binary Tree	Medium
12	865	Smallest Subtree with all the Deepest Nodes	Medium
13	870	Advantage Shuffle	Medium
14	877	Stone Game	Medium
15	881	Boats to Save People	Medium
16	890	Find and Replace Pattern	Medium
17	894	All Possible Full Binary Trees	Medium
18	900	RLE Iterator	Medium
19	901	Online Stock Span	Medium
20	904	Fruit Into Baskets	Medium

2018.09.24 - 2018.09.30

count	number	title	difficult	finish-time	comment
1	911	Online Election	Medium	2018-09-24
2	916	Word Subsets	Medium	2018-10-02	DELAY (National Day)
3	915	Partition Array into Disjoint Intervals	Medium	2018-10-02	DELAY (National Day)
4	641	Design Circular Deque	Medium	2018-10-02	DELAY (National Day)
5	622	Design Circular Queue	Medium	2018-10-02	DELAY (National Day)

2018.10.01 - 2018.10.07

2018.10.08 - 2018.10.14

count	number	title	difficult	finish-time	comment
1	922	Sort Array By Parity II	Easy	2018-10-14
2	921	Minimum Add to Make Parentheses Valid	Medium	2018-10-14
3	923	3Sum With Multiplicity	Medium	2018-10-14
4	919	Complete Binary Tree Inserter	Medium	2018-10-14
5	430	Flatten a Multilevel Doubly Linked List	Medium	2018-10-14
6	540	Single Element in a Sorted Array	Medium	2018-10-14

2018.10.15 - 2018.10.21

count	number	title	difficult	finish-time	comment
1	869	Reordered Power of 2	Medium	2018-10-17
2	849	Maximize Distance to Closest Person	Easy	2018-10-17
3	855	Exam Room	Medium	2018-10-18	NEED OPTIMIZATION
4	926	Flip String to Monotone Increasing	Medium	2018-10-21
5	654	Maximum Binary Tree	Medium	2018-10-21
6	814	Binary Tree Pruning	Medium	2018-10-21

2018.10.22 - 2018.10.28

count	number	title	difficult	finish-time	comment
1	931	Minimum Falling Path Sum	Medium	2018-10-28
2	930	Binary Subarrays With Sum	Medium	2018-10-30	subarray (think about presum)
3	513	Find Bottom Left Tree Value	Medium	2018-10-30
4	515	Find Largest Value in Each Tree Row	Medium	2018-10-30
5	94	Binary Tree Inorder Traversal	Medium	2018-10-30

2018.10.29 - 2018.11.04

count	number	title	difficult	finish-time	comment
1	918	Maximum Sum Circular Subarray	Medium	2018-10-30
2	907	Sum of Subarray Minimums	Medium	2018-10-31
3	873	Length of Longest Fibonacci Subsequence	Medium	2018-10-31
4	938	Range Sum of BST	Medium	2018-11-11
5	875	Koko Eating Bananas	Medium	2018-11-12

2018.11.05 - 2018.11.11

count	number	title	difficult	finish-time	comment
1	94	Binary Tree Inorder Traversal	Medium	2018-11-12
2	508	Most Frequent Subtree Sum	Medium	2018-11-18

2018.11.12 - 2018.11.18

count	number	title	difficult	finish-time	comment
1	941	Valid Mountain Array	Easy	2018-11-18
2	944	Delete Columns to Make Sorted	Medium	2018-11-18
3	942	DI String Match	Medium	2018-11-18
4	951	Flip Equivalent Binary Trees	Medium	2018-12-02
5	949	Largest Time for Given Digits	Easy	2018-12-02
6	950	Reveal Cards In Increasing Order	Medium	2018-12-02

2018.11.19 - 2018.11.25

count	number	title	difficult	finish-time	comment
1	885	Spiral Matrix III	Medium	2018-11-21
2	889	Construct Binary Tree from Preorder and Postorder Traversal	Medium	2018-11-22
3	945	Minimum Increment to Make Array Unique	Medium	2018-11-25
4	946	Validate Stack Sequences	Medium	2018-11-25
5	934	Shortest Bridge	Medium	2018-11-25

2018.11.26 - 2018.12.02

count	number	title	difficult	finish-time	comment
1	655	Print Binary Tree	Medium	2018-12-01
2	144	Binary Tree Preorder Traversal	Medium	2018-12-01
3	230	Kth Smallest Element in a BST	Medium	2018-12-01
4	684	Redundant Connection	Medium	2018-12-01
5	685	Redundant Connection II	Medium	2018-12-01

2019.01.21 - 2019.01.27

count	number	title	difficult	finish-time	comment
1	979	Distribute Coins in Binary Tree	Medium	2019-01-23
2	969	Pancake Sorting	Medium	2019-01-24
3	959	Regions Cut By Slashes	Medium	2019-01-25
4	337	House Robber III	Medium	2019-01-30
5	958	Check Completeness of a Binary Tree	Medium	2019-02-01

2019.01.28 - 2019.02.03

count	number	title	difficult	finish-time	comment
1	985	Sum of Even Numbers After Queries	Easy	2019-02-03
2	986	Interval List Intersections	Medium	2019-02-03
3	988	Smallest String Starting From Leaf	Medium	2019-02-03
4	863	All Nodes Distance K in Binary Tree	Medium	2019-02-03
5	96	Unique Binary Search Trees	Medium	2019-02-03
6	652	Find Duplicate Subtrees	Medium	2019-02-03

REVIEW LIST

count	number	title	difficult	deadline	status	finish-time	comment
1	846	Hand of Straights	Medium	2018-09-16	DONE	2018-09-16
2	835	Image Overlap	Medium	2018-09-23	DONE	2018-09-23
3	870	Advantage Shuffle	Medium	2018-09-23	DONE	2018-09-23
4	900	RLE Iterator	Medium	2018-09-30	DONE	2018-10-02	replace binary search by using some tricks
5	901	Online Stock Span	Medium	2018-09-30	DONE	2018-10-02	replace useless storage by using stack style
6	807	Max Increase to Keep City Skyline	Medium	2018-10-07	TODO
7	894	All Possible Full Binary Trees	Medium	2018-10-07	TODO
8	863	All Nodes Distance K in Binary Tree	Medium	2018-10-07	DONE	2019-02-03
9	915	Partition Array into Disjoint Intervals	Medium	2018-10-14	TODO
10	923	3Sum With Multiplicity	Medium	2018-10-21	TODO
11	869	Reordered Power of 2	Medium	2018-10-24	TODO
12	926	Flip String to Monotone Increasing	Medium	2018-10-28	TODO
13	930	Binary Subarrays With Sum	Medium	2018-11-12	TODO
14	513	Find Bottom Left Tree Value	Medium	2018-11-12	TODO
15	918	Maximum Sum Circular Subarray	Medium	2018-11-12	TODO
16	907	Sum of Subarray Minimums	Medium	2018-11-12	TODO
17	873	Length of Longest Fibonacci Subsequence	Medium	2018-11-12	TODO
18	865	Smallest Subtree with all the Deepest Nodes	Medium	2018-1124	TODO
19	885	Spiral Matrix III	Medium	2018-11-24
20	889	Construct Binary Tree from Preorder and Postorder Traversal	Medium	2018-11-24
21	685	Redundant Connection II	Medium	2018-12-15
22	979	Distribute Coins in Binary Tree	Medium	2019-02-06
23	959	Regions Cut By Slashes	Medium	2019-02-06