LeetCode

LeetCode Algorithm

(Note: 🔒 == Premium)

#	Title	Solution	Difficulty
125	Valid Palindrome	Go	Easy
159	Longest Substring with At Most Two Distinct Characters 🔒	JAVA	Medium
213	House Robber II	JAVA	Medium
217	Contains Duplicate	Go	Easy
252	Meeting Rooms 🔒	JAVA	Easy
303	Range Sum Query - Immutable	JAVA, Python	Easy
339	Nested List Weight Sum 🔒	JAVA	Easy
436	Read N Characters Given Read4 II - Call multiple times 🔒	JAVA, Python	Hard
604	Design Compressed String Iterator 🔒	JAVA	Easy
833	Find And Replace in String 🔒	JAVA	Medium
1055	Shortest Way to Form String 🔒	JAVA	Medium
1222	Queens That Can Attack the King	JAVA	Medium
1314	Matrix Block Sum	Python	Medium
1409	Queries on a Permutation With Key	JAVA, Python	Medium
1475	Final Prices With a Special Discount in a Shop	JAVA	EASY

October 2020 Challenge

#	Title	Solution
1	Number of Recent Calls	Go
2	Combination Sum	TO Be Solved
3	K-diff Pairs in an Array	Go
4	Remove Covered Intervals	Go

August 2020 Challenge

#	Title	Solution
1	Detect Capital	JAVA
2	Design HashSet	JAVA
3	Valid Palindrome	JAVA
4	Power of Four	JAVA
5	Add and Search Word - Data structure design	JAVA
6	Find All Duplicates in an Array	JAVA
7	Vertical Order Traversal of a Binary Tree	JAVA
8	Path Sum III	JAVA
9	Rotting Oranges	JAVA
10	Excel Sheet Column Number	JAVA
11	H-Index	JAVA
12	Pascal's Triangle II	JAVA
13	Iterator for Combination	JAVA
14	Longest Palindrome	JAVA
15	Non-overlapping Intervals	JAVA
16	Best Time to Buy and Sell Stocks III	To be uploaded
17	Distribute Candies to People	JAVA
18	Numbers With Same Consecutive Differences	JAVA
19	Goat Latin	JAVA
20	Reorder List	JAVA
21	Sort Array by Parity	JAVA

July 2020 Challenge

Show July 2020 Challenge History

#	Title	Solution
1	Arranging Coins	JAVA
2	Binary Tree Level Order Traversal II	JAVA
3	Prison Cells After N Days	JAVA
4	Ugly Number II	JAVA
5	Hamming Distance	JAVA
6	Plus One	JAVA
7	Island Perimeter	To Be Uploaded
8	3 Sum	Not Solved
9	Maximum Width of Binary Tree	JAVA
10	Flatten a Multilevel Doubly Linked List	JAVA
11	Subsets	JAVA
12	Reverse Bits	JAVA
13	Same Tree	JAVA
14	Angle Between Hands of a Clock	JAVA
15	Reverse Words in a String	JAVA
16	Pow(x,n)	JAVA
17	Top K Frequent Elements	JAVA
18	Course Schedule II	JAVA
19	Add Binary	JAVA
20	Remove Linked List Elements	JAVA
21	Word Search	JAVA
22	Binary Tree Zigzag Level Order Traversal	JAVA
23	Single Number III	JAVA
24	All Paths From Source to Target	To Be Uploaded
25	Find Minimum in Rotated Sorted Array II	JAVA
26	Add Digits	JAVA
27	Construct Binary Tree from Inorder and Postorder Traversal	JAVA
28	Task Scheduler	JAVA
29	Best Time to Buy and Sell Stock with Cooldown	Not Solved
30	Word Break II	Not Solved
31	Climbing Stairs	JAVA

June 2020 Challenge

Show June 2020 Challenge History

#	Title	Solution
1	Invert Binary Tree	JAVA, Python
2	Delete Node in a Linked List	JAVA, Python
3	Two City Scheduling	JAVA, Python
4	Reverse String	JAVA, Python
5	Random Pick with Weight	JAVA, Python
6	Queue Reconstruction by Height	JAVA, Python
7	Coin Change 2	JAVA, Python
8	Power of Two	JAVA, Python
9	Is Subsequence	JAVA, Python
10	Search Insert Position	JAVA, Python
11	Sort Colors	JAVA, Python
12	Insert Delete GetRandom O(1)	JAVA, Python
13	Largest Divisible Subset	JAVA, Python
14	Cheapest Flights Within K Stops	JAVA, Python
15	Search in a Binary Search Tree	JAVA, Python
16	Validate IP Address	JAVA, Python
17	Surrounded Regions	JAVA, Python
18	H-Index II	JAVA, Python
19	Longest Duplicate Substring	Not Solved
20	Permutation Sequence	JAVA, Python
21	Dungeon Game	JAVA
22	Single Number II	JAVA
23	Count Complete Tree Nodes	JAVA
24	Unique Binary Search Trees	JAVA
25	Find the Duplicate Number	JAVA
26	Sum Root to Leaf Numbers	JAVA
27	Perfect Squares	JAVA
28	Reconstruct Itinerary	JAVA
29	Unique Paths	JAVA
30	Word Search II	JAVA

This repository references haoel's leetcode