DaleStudy/leetcode-study

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Stars: 156
Forks: 359
Open beginner issues: 0
Indexed issues: 75
Avg merge: 1d 16h
Merged PRs (30d): 38

Dominant language: Python
License: MIT
Last GitHub push: Sep 13, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

75 open issues indexed

Alien Dictionary Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 45/100

DaleStudy/leetcode-study#291 · 1 reaction · Opened Aug 5, 2024
Word Search II Open

problem

Difficulty 4/5 3-5 days Newbie friendliness 45/100

DaleStudy/leetcode-study#290 · 1 reaction · Opened Aug 5, 2024
Find Median From Data Stream Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 45/100

DaleStudy/leetcode-study#289 · 1 reaction · Opened Aug 5, 2024
Serialize And Deserialize Binary Tree Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

DaleStudy/leetcode-study#288 · 1 reaction · Opened Aug 5, 2024
Binary Tree Maximum Path Sum Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 35/100

DaleStudy/leetcode-study#287 · 1 reaction · Opened Aug 5, 2024
Merge K Sorted Lists Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 48/100

DaleStudy/leetcode-study#286 · 1 reaction · Opened Aug 5, 2024
Minimum Window Substring Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 35/100

DaleStudy/leetcode-study#285 · 1 reaction · Opened Aug 5, 2024
Sum of Two Integers Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

DaleStudy/leetcode-study#284 · 2 reactions · Opened Aug 5, 2024
Set Matrix Zeroes Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

DaleStudy/leetcode-study#283 · 3 reactions · Opened Aug 5, 2024
Spiral Matrix Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#282 · 2 reactions · Opened Aug 5, 2024
Rotate Image Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

DaleStudy/leetcode-study#281 · 1 reaction · Opened Aug 5, 2024
Meeting Rooms II Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

DaleStudy/leetcode-study#280 · 1 reaction · Opened Aug 5, 2024
Non Overlapping Intervals Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

DaleStudy/leetcode-study#279 · 2 reactions · Opened Aug 5, 2024
Merge Intervals Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

DaleStudy/leetcode-study#278 · 1 reaction · Opened Aug 5, 2024
Insert Interval Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#277 · 2 reactions · Opened Aug 5, 2024
Jump Game Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 42/100

DaleStudy/leetcode-study#276 · 1 reaction · Opened Aug 5, 2024
Maximum Subarray Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#275 · 1 reaction · Opened Aug 5, 2024
Longest Common Subsequence Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

DaleStudy/leetcode-study#274 · 1 reaction · Opened Aug 5, 2024
Unique Paths Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

DaleStudy/leetcode-study#273 · 1 reaction · Opened Aug 5, 2024
Longest Increasing Subsequence Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 45/100

DaleStudy/leetcode-study#272 · 4 reactions · Opened Aug 5, 2024
Word Break Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 52/100

DaleStudy/leetcode-study#271 · 2 reactions · Opened Aug 5, 2024
Maximum Product Subarray Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 45/100

DaleStudy/leetcode-study#270 · 3 reactions · Opened Aug 5, 2024
Coin Change Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#269 · 2 reactions · Opened Aug 5, 2024
Decode Ways Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

DaleStudy/leetcode-study#268 · 2 reactions · Opened Aug 5, 2024
Palindromic Substrings Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

DaleStudy/leetcode-study#267 · 1 reaction · Opened Aug 5, 2024
Longest Palindromic Substring Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

DaleStudy/leetcode-study#266 · 2 reactions · Opened Aug 5, 2024
House Robber II Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#265 · 3 reactions · Opened Aug 5, 2024
House Robber Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

DaleStudy/leetcode-study#264 · 2 reactions · Opened Aug 5, 2024
Number of Connected Components in an Undirected Graph Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#263 · 2 reactions · Opened Aug 5, 2024
Graph Valid Tree Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

DaleStudy/leetcode-study#262 · 1 reaction · Opened Aug 5, 2024
Course Schedule Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

DaleStudy/leetcode-study#261 · 1 reaction · Opened Aug 5, 2024
Pacific Atlantic Water Flow Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 48/100

DaleStudy/leetcode-study#260 · 1 reaction · Opened Aug 5, 2024
Clone Graph Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 45/100

DaleStudy/leetcode-study#259 · 1 reaction · Opened Aug 5, 2024
Number of Islands Open

problem

Difficulty 3/5 1-2 days Newbie friendliness 35/100

DaleStudy/leetcode-study#258 · 3 reactions · Opened Aug 5, 2024
Design Add And Search Words Data Structure Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

DaleStudy/leetcode-study#257 · 3 reactions · Opened Aug 5, 2024
Implement Trie Prefix Tree Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

DaleStudy/leetcode-study#256 · 4 reactions · Opened Aug 5, 2024
Word Search Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#255 · 2 reactions · Opened Aug 5, 2024
Combination Sum Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#254 · 2 reactions · Opened Aug 5, 2024
Construct Binary Tree From Preorder And Inorder Traversal Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

DaleStudy/leetcode-study#253 · 3 reactions · Opened Aug 5, 2024
Kth Smallest Element In a Bst Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

DaleStudy/leetcode-study#252 · 1 reaction · Opened Aug 5, 2024
Validate Binary Search Tree Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

DaleStudy/leetcode-study#251 · 1 reaction · Opened Aug 5, 2024
Binary Tree Level Order Traversal Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

DaleStudy/leetcode-study#250 · 1 reaction · Opened Aug 5, 2024
Lowest Common Ancestor of a Binary Search Tree Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

DaleStudy/leetcode-study#249 · 2 reactions · Opened Aug 5, 2024
Remove Nth Node From End of List Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

DaleStudy/leetcode-study#248 · 1 reaction · Opened Aug 5, 2024
Reorder List Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#247 · 3 reactions · Opened Aug 5, 2024
Search In Rotated Sorted Array Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

DaleStudy/leetcode-study#246 · 1 reaction · Opened Aug 5, 2024
Find Minimum In Rotated Sorted Array Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

DaleStudy/leetcode-study#245 · 3 reactions · Opened Aug 5, 2024
Longest Repeating Character Replacement Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 56/100

DaleStudy/leetcode-study#244 · 2 reactions · Opened Aug 5, 2024
Longest Substring Without Repeating Characters Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

DaleStudy/leetcode-study#243 · 3 reactions · Opened Aug 5, 2024
Container With Most Water Open

problem

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

DaleStudy/leetcode-study#242 · 4 reactions · Opened Aug 5, 2024

DaleStudy/leetcode-study

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