GitHub - kkoo1122/Leetcode_Practice

LeetCode Practice

This is the page that I upload my algorithm practicing codes. Each code has the question asked on the leetcode, my thoughts or others' thoughts to solve each question and the code.

It is a place for me to review my algorithm knowledge.

Name		Name	Last commit message	Last commit date
Latest commit History 108 Commits
Array		Array
Tree		Tree
.gitignore		.gitignore
100. Same Tree.ipynb		100. Same Tree.ipynb
103. Binary Tree Zigzag Level Order Traversal.ipynb		103. Binary Tree Zigzag Level Order Traversal.ipynb
105. Construct Binary Tree from Preorder and Inorder Traversal.ipynb		105. Construct Binary Tree from Preorder and Inorder Traversal.ipynb
106. Construct Binary Tree from Inorder and Postorder Traversal.ipynb		106. Construct Binary Tree from Inorder and Postorder Traversal.ipynb
108. Convert Sorted Array to Binary Search Tree.ipynb		108. Convert Sorted Array to Binary Search Tree.ipynb
109. Convert Sorted List to Binary Search Tree.ipynb		109. Convert Sorted List to Binary Search Tree.ipynb
113. Path Sum II.ipynb		113. Path Sum II.ipynb
114. Flatten Binary Tree to Linked List.ipynb		114. Flatten Binary Tree to Linked List.ipynb
118. Pascal's Triangle.ipynb		118. Pascal's Triangle.ipynb
119. Pascal's Triangle II.ipynb		119. Pascal's Triangle II.ipynb
12. Integer to Roman.ipynb		12. Integer to Roman.ipynb
120. Triangle.ipynb		120. Triangle.ipynb
121. Best Time to Buy and Sell Stock.ipynb		121. Best Time to Buy and Sell Stock.ipynb
122. Best Time to Buy and Sell Stock II.ipynb		122. Best Time to Buy and Sell Stock II.ipynb
125. Valid Palindrome.ipynb		125. Valid Palindrome.ipynb
131. Palindrome Partitioning.ipynb		131. Palindrome Partitioning.ipynb
136. Single Number.ipynb		136. Single Number.ipynb
137. Single Number II.ipynb		137. Single Number II.ipynb
138. Copy List with Random Pointer.ipynb		138. Copy List with Random Pointer.ipynb
141. Linked List Cycle.ipynb		141. Linked List Cycle.ipynb
142. Linked List Cycle II.ipynb		142. Linked List Cycle II.ipynb
143. Reorder List.ipynb		143. Reorder List.ipynb
148. Sort List.ipynb		148. Sort List.ipynb
15. 3Sum.ipynb		15. 3Sum.ipynb
152. Maximum Product Subarray.ipynb		152. Maximum Product Subarray.ipynb
16. 3Sum Closest.ipynb		16. 3Sum Closest.ipynb
162. Find Peak Element.ipynb		162. Find Peak Element.ipynb
167. Two Sum II - Input array is sorted.ipynb		167. Two Sum II - Input array is sorted.ipynb
169. Majority Element.ipynb		169. Majority Element.ipynb
17. Letter Combinations of a Phone Number.ipynb		17. Letter Combinations of a Phone Number.ipynb
18. 4Sum.ipynb		18. 4Sum.ipynb
186. Reverse Words in a String II.ipynb		186. Reverse Words in a String II.ipynb
187. Repeated DNA Sequences.ipynb		187. Repeated DNA Sequences.ipynb
189. Rotate Array.ipynb		189. Rotate Array.ipynb
19. Remove Nth Node From End of List.ipynb		19. Remove Nth Node From End of List.ipynb
198. House Robber.ipynb		198. House Robber.ipynb
2. Add Two Numbers.ipynb		2. Add Two Numbers.ipynb
202. Happy Number.ipynb		202. Happy Number.ipynb
204. Count Primes.ipynb		204. Count Primes.ipynb
206. Reverse Linked List.ipynb		206. Reverse Linked List.ipynb
213. House Robber II.ipynb		213. House Robber II.ipynb
216. Combination Sum III.ipynb		216. Combination Sum III.ipynb
22. Generate Parentheses.ipynb		22. Generate Parentheses.ipynb
220. Contains Duplicate III.ipynb		220. Contains Duplicate III.ipynb
226. Invert Binary Tree.ipynb		226. Invert Binary Tree.ipynb
228. Summary Ranges.ipynb		228. Summary Ranges.ipynb
23. Merge k Sorted Lists.ipynb		23. Merge k Sorted Lists.ipynb
234. Palindrome Linked List.ipynb		234. Palindrome Linked List.ipynb
235. Lowest Common Ancestor of a Binary Search Tree.ipynb		235. Lowest Common Ancestor of a Binary Search Tree.ipynb
238. Product of Array Except Self.ipynb		238. Product of Array Except Self.ipynb
24. Swap Nodes in Pairs.ipynb		24. Swap Nodes in Pairs.ipynb
243. Shortest Word Distance.ipynb		243. Shortest Word Distance.ipynb
256. Paint House.ipynb		256. Paint House.ipynb
257. Binary Tree Paths.ipynb		257. Binary Tree Paths.ipynb
258. Add Digits.ipynb		258. Add Digits.ipynb
260. Single Number III.ipynb		260. Single Number III.ipynb
263. Ugly Number.ipynb		263. Ugly Number.ipynb
279. Perfect Squares.ipynb		279. Perfect Squares.ipynb
28. Implement strStr().ipynb		28. Implement strStr().ipynb
280. Wiggle Sort.ipynb		280. Wiggle Sort.ipynb
29. Divide Two Integers.ipynb		29. Divide Two Integers.ipynb
290. Word Pattern.ipynb		290. Word Pattern.ipynb
3. Longest Substring Without Repeating Characters.ipynb		3. Longest Substring Without Repeating Characters.ipynb
300. Longest Increasing Subsequence.ipynb		300. Longest Increasing Subsequence.ipynb
303. Range Sum Query - Immutable.ipynb		303. Range Sum Query - Immutable.ipynb
307. Range Sum Query - Mutable.ipynb		307. Range Sum Query - Mutable.ipynb
31. Next Permutation.ipynb		31. Next Permutation.ipynb
313. Super Ugly Number.ipynb		313. Super Ugly Number.ipynb
324. Wiggle Sort II.ipynb		324. Wiggle Sort II.ipynb
328. Odd Even Linked List.ipynb		328. Odd Even Linked List.ipynb
33. Search in Rotated Sorted Array.ipynb		33. Search in Rotated Sorted Array.ipynb
337. House Robber III.ipynb		337. House Robber III.ipynb
338. Counting Bits.ipynb		338. Counting Bits.ipynb
343. Integer Break.ipynb		343. Integer Break.ipynb
345. Reverse Vowels of a String.ipynb		345. Reverse Vowels of a String.ipynb
349. Intersection of Two Arrays.ipynb		349. Intersection of Two Arrays.ipynb
369. Plus One Linked List.ipynb		369. Plus One Linked List.ipynb
371. Sum of Two Integers.ipynb		371. Sum of Two Integers.ipynb
372. Super Pow.ipynb		372. Super Pow.ipynb
377. Combination Sum IV.ipynb		377. Combination Sum IV.ipynb
38. Count and Say.ipynb		38. Count and Say.ipynb
387. First Unique Character in a String.ipynb		387. First Unique Character in a String.ipynb
389. Find the Difference.ipynb		389. Find the Difference.ipynb
39. Combination Sum.ipynb		39. Combination Sum.ipynb
392. Is Subsequence.ipynb		392. Is Subsequence.ipynb
397. Integer Replacement.ipynb		397. Integer Replacement.ipynb
40. Combination Sum II.ipynb		40. Combination Sum II.ipynb
401. Binary Watch.ipynb		401. Binary Watch.ipynb
412. Fizz Buzz.ipynb		412. Fizz Buzz.ipynb
413. Arithmetic Slices.ipynb		413. Arithmetic Slices.ipynb
421. Maximum XOR of Two Numbers in an Array.ipynb		421. Maximum XOR of Two Numbers in an Array.ipynb
430. Flatten a Multilevel Doubly Linked List.ipynb		430. Flatten a Multilevel Doubly Linked List.ipynb
437. Path Sum III.ipynb		437. Path Sum III.ipynb
442. Find All Duplicates in an Array.ipynb		442. Find All Duplicates in an Array.ipynb
445. Add Two Numbers II.ipynb		445. Add Two Numbers II.ipynb
448. Find All Numbers Disappeared in an Array.ipynb		448. Find All Numbers Disappeared in an Array.ipynb
453. Minimum Moves to Equal Array Elements.ipynb		453. Minimum Moves to Equal Array Elements.ipynb

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