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1,829 Commits
Concepts
Concepts
 
 
Data Structures and Algorithms
Data Structures and Algorithms
 
 
FamousProblems
FamousProblems
 
 
Geek4geeks
Geek4geeks
 
 
Go
Go
 
 
LintCode
LintCode
 
 
OOD
OOD
 
 
System Design
System Design
 
 
mianjing
mianjing
 
 
templates
templates
 
 
1. Two Sum.java
1. Two Sum.java
 
 
10. Regular Expression Matching.java
10. Regular Expression Matching.java
 
 
100. Same Tree.java
100. Same Tree.java
 
 
1007. Minimum Domino Rotations For Equal Row.java
1007. Minimum Domino Rotations For Equal Row.java
 
 
1008. Construct Binary Search Tree from Preorder Traversal.java
1008. Construct Binary Search Tree from Preorder Traversal.java
 
 
1009. Complement of Base 10 Integer.java
1009. Complement of Base 10 Integer.java
 
 
101. Symmetric Tree.java
101. Symmetric Tree.java
 
 
1011. Capacity To Ship Packages Within D Days.java
1011. Capacity To Ship Packages Within D Days.java
 
 
102. Binary Tree Level Order Traversal.java
102. Binary Tree Level Order Traversal.java
 
 
1023. Binary String With Substrings Representing 1 To N.java
1023. Binary String With Substrings Representing 1 To N.java
 
 
103. Binary Tree Zigzag Level Order Traversal.java
103. Binary Tree Zigzag Level Order Traversal.java
 
 
1035. Uncrossed Lines.java
1035. Uncrossed Lines.java
 
 
104. Maximum Depth of Binary Tree.java
104. Maximum Depth of Binary Tree.java
 
 
105. Construct Binary Tree from Preorder and Inorder Traversal.java
105. Construct Binary Tree from Preorder and Inorder Traversal.java
 
 
106. Construct Binary Tree from Inorder and Postorder Traversal.java
106. Construct Binary Tree from Inorder and Postorder Traversal.java
 
 
107. Binary Tree Level Order Traversal II.java
107. Binary Tree Level Order Traversal II.java
 
 
108. Convert Sorted Array to Binary Search Tree.java
108. Convert Sorted Array to Binary Search Tree.java
 
 
109. Convert Sorted List to Binary Search Tree.java
109. Convert Sorted List to Binary Search Tree.java
 
 
110. Balanced Binary Tree.java
110. Balanced Binary Tree.java
 
 
111. Minimum Depth of Binary Tree.java
111. Minimum Depth of Binary Tree.java
 
 
112. Path Sum.java
112. Path Sum.java
 
 
113. Path Sum II.java
113. Path Sum II.java
 
 
114. Flatten Binary Tree to Linked List.java
114. Flatten Binary Tree to Linked List.java
 
 
1143. Longest Common Subsequence.java
1143. Longest Common Subsequence.java
 
 
115. Distinct Subsequences.java
115. Distinct Subsequences.java
 
 
116. Populating Next Right Pointers in Each Node.java
116. Populating Next Right Pointers in Each Node.java
 
 
117. Populating Next Right Pointers in Each Node II.java
117. Populating Next Right Pointers in Each Node II.java
 
 
118. Pascal's Triangle.java
118. Pascal's Triangle.java
 
 
119. Pascal's Triangle II.java
119. Pascal's Triangle II.java
 
 
12. Integer to Roman.java
12. Integer to Roman.java
 
 
120. Triangle.java
120. Triangle.java
 
 
121. Best Time to Buy and Sell Stock.java
121. Best Time to Buy and Sell Stock.java
 
 
122. Best Time to Buy and Sell Stock II.java
122. Best Time to Buy and Sell Stock II.java
 
 
1232. Check If It Is a Straight Line.java
1232. Check If It Is a Straight Line.java
 
 
124. Binary Tree Maximum Path Sum.java
124. Binary Tree Maximum Path Sum.java
 
 
125. Valid Palindrome.java
125. Valid Palindrome.java
 
 
126. Word Ladder II.java
126. Word Ladder II.java
 
 
127. Word Ladder.java
127. Word Ladder.java
 
 
1277. Count Square Submatrices with All Ones.java
1277. Count Square Submatrices with All Ones.java
 
 
128. Longest Consecutive Sequence.java
128. Longest Consecutive Sequence.java
 
 
129. Sum Root to Leaf Numbers.java
129. Sum Root to Leaf Numbers.java
 
 
13. Roman to Integer.java
13. Roman to Integer.java
 
 
130. Surrounded Regions.java
130. Surrounded Regions.java
 
 
131. Palindrome Partitioning.java
131. Palindrome Partitioning.java
 
 
132. Palindrome Partitioning II.java
132. Palindrome Partitioning II.java
 
 
133. Clone Graph.java
133. Clone Graph.java
 
 
134. Gas Station.java
134. Gas Station.java
 
 
135. Candy.java
135. Candy.java
 
 
136. Single Number.java
136. Single Number.java
 
 
137. Single Number II.java
137. Single Number II.java
 
 
138. Copy List with Random Pointer.java
138. Copy List with Random Pointer.java
 
 
139. Word Break.java
139. Word Break.java
 
 
14. Longest Common Prefix.java
14. Longest Common Prefix.java
 
 
140. Word Break II.java
140. Word Break II.java
 
 
141. Linked List Cycle.java
141. Linked List Cycle.java
 
 
142. Linked List Cycle II.java
142. Linked List Cycle II.java
 
 
143. Reorder List.java
143. Reorder List.java
 
 
146. LRU Cache.java
146. LRU Cache.java
 
 
147. Insertion Sort List.java
147. Insertion Sort List.java
 
 
148. Sort List.java
148. Sort List.java
 
 
149. Max Points on a Line.java
149. Max Points on a Line.java
 
 
15. 3Sum.java
15. 3Sum.java
 
 
150. Evaluate Reverse Polish Notation.java
150. Evaluate Reverse Polish Notation.java
 
 
151. Reverse Words in a String.java
151. Reverse Words in a String.java
 
 
152. Maximum Product Subarray.java
152. Maximum Product Subarray.java
 
 
153. Find Minimum in Rotated Sorted Array.java
153. Find Minimum in Rotated Sorted Array.java
 
 
154. Find Minimum in Rotated Sorted Array II.java
154. Find Minimum in Rotated Sorted Array II.java
 
 
155. Min Stack.java
155. Min Stack.java
 
 
156. Binary Tree Upside Down.java
156. Binary Tree Upside Down.java
 
 
157. Read N Characters Given Read4.java
157. Read N Characters Given Read4.java
 
 
158. Read N Characters Given Read4 II - Call multiple times.java
158. Read N Characters Given Read4 II - Call multiple times.java
 
 
159. Longest Substring with At Most Two Distinct Characters.java
159. Longest Substring with At Most Two Distinct Characters.java
 
 
16. 3Sum Closest.java
16. 3Sum Closest.java
 
 
160. Intersection of Two Linked Lists.java
160. Intersection of Two Linked Lists.java
 
 
161. One Edit Distance.java
161. One Edit Distance.java
 
 
162. Find Peak Element.java
162. Find Peak Element.java
 
 
163 Missing Ranges.java
163 Missing Ranges.java
 
 
164. Maximum Gap.java
164. Maximum Gap.java
 
 
165. Compare Version Numbers.java
165. Compare Version Numbers.java
 
 
166. Fraction to Recurring Decimal.java
166. Fraction to Recurring Decimal.java
 
 
167. Two Sum II - Input array is sorted.java
167. Two Sum II - Input array is sorted.java
 
 
168. Excel Sheet Column Title.java
168. Excel Sheet Column Title.java
 
 
169. Majority Element.java
169. Majority Element.java
 
 
17. Letter Combinations of a Phone Number.java
17. Letter Combinations of a Phone Number.java
 
 
170. Two Sum III - Data structure design.java
170. Two Sum III - Data structure design.java
 
 
171. Excel Sheet Column Number.java
171. Excel Sheet Column Number.java
 
 
172. Factorial Trailing Zeroes.java
172. Factorial Trailing Zeroes.java
 
 
173. Binary Search Tree Iterator.java
173. Binary Search Tree Iterator.java
 
 
174. Dungeon Game.java
174. Dungeon Game.java
 
 
179. Largest Number.java
179. Largest Number.java
 
 

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Leetcode-practice

Segment Tree，BIT，Trie，Union Find，LinkedHashMap
DFS，BFS，topological sort, dfs/bfs connected, dfs/bfs circle, Sliding Window，sweep line
sorting

cc150

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