LeetCode ###LeetCode Algorithm (Notes: All solutions are accepted in Leetcode) (Notes: All solutions can be tested with Python unittest) # Title Solution Difficulty 375 Guess Number Higher or Lower II Python Medium 374 Guess Number Higher or Lower Python Easy 372 Super Pow Python Medium 350 Intersection of Two Arrays II Python Easy 343 Integer Break Python Medium 322 Coin Change Python Medium 304 Range Sum Query 2D - Immutable Python Medium 300 Longest Increasing Subsequence Python Medium 290 Word Pattern Python Easy 234 Palindrome Linked List Python Easy 268 Missing Number Python Medium 231 Power of Two Python Easy 228 Summary Ranges Python Easy 227 Basic Calculator II Python Medium 226 Invert Binary Tree Python Easy 225 Implement Stack using Queues Python Medium 224 Basic Calculator Python Hard 217 Contains Duplicate Python Easy 213 House Robber II Python Medium 211 Add and Search Word - Data structure design Python Medium 206 Reverse Linked List Python Easy 202 Happy Number Python Easy 198 House Robber Python Easy 191 Number of 1 Bits Python Easy 172 Factorial Trailing Zeroes Python Easy 169 Majority Element Python Easy 162 Find Peak Element Python Medium 160 Intersection of Two Linked Lists Python Easy 153 Find Minimum in Rotated Sorted Array Python Medium 148 Sort List Python Medium 147 Insertion Sort List Python Medium 144 Binary Tree Preorder Traversal Python Medium 136 Single Number Python Medium 121 Best Time to Buy and Sell Stock Python Medium 119 Pascal's Triangle II Python Easy 112 Path Sum Python Easy 109 Convert Sorted List to Binary Search Tree Python Medium 108 Convert Sorted Array to Binary Search Tree Python Medium 101 Symmetric Tree Python Easy 100 Same Tree Python Easy 80 Remove Duplicates from Sorted Array II Python Easy 78 Subsets Python Medium 77 Combinations Python Medium 70 Climbing Stairs Python Easy 67 Add Binary Python Easy 66 Plus One Python Easy 64 Minimum Path Sum Python Medium 60 Permutation Sequence Python Medium 50 "Pow(x, n)" Python Medium 36 Valid Sudoku Python Easy 34 Search for a Range Python Medium 33 Search in Rotated Sorted Array Python Hard 32 Longest Valid Parentheses Python Hard 27 Remove Element Python Easy 26 Remove Duplicates from Sorted Array Python Easy 25 Reverse Nodes in k-Group Python Hard 23 Merge k Sorted Lists Python Hard 22 Generate Parentheses Python Medium 19 Remove Nth Node From End of List Python Easy 16 3Sum Closest Python Medium 15 3Sum Python Medium 6 ZigZag Conversion Python Easy 3 Longest Substring Without Repeating Characters Python Medium 2 Add Two Numbers Python Medium ###LeetCode Shell # Title Solution Difficulty ###LintCode # Title Solution Difficulty