LeetCode 标签

2022

02-16

LeetCode 114. Flatten Binary Tree to Linked List 3 Approaches: PreOrder, Iteration and Recursion

02-16

LeetCode 1780. Check if Number is a Sum of Powers of Three 3 Solutions: Tricky, Recursion and Base 3 Convertion

02-13

LeetCode 350. Intersection of Two Arrays II 2 Solutions: Sort with Two Pointers and HashMap

02-10

LeetCode 36. Valid Sudoku 2 Approaches: HashSet and Array

02-07

LeetCode 242. Valid Anagram 3 Approaches: HashMap, Sorting and Counting

02-01

LeetCode 136. Single Number The XOR Cheat Sheet | Bit Manipulation with Easy Detailed Explanation

01-20

LeetCode 171. Excel Sheet Column Number 2 Approaches: Base Conversion from High to Low and from Low to High

01-19

LeetCode][219. Contains Duplicate II] 3 Approaches: Brute Force, HashMap and Sliding Window

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