LeetCode

Collection of LeetCode questions to ace the coding interview! - Created using LeetHub-3.0

LeetCode Topics

Array

Problem Name	Difficulty
0001-two-sum	Easy
0015-3sum	Medium
0074-search-a-2d-matrix	Medium
0219-contains-duplicate-ii	Easy
0349-intersection-of-two-arrays	Easy
0704-binary-search	Easy
0877-stone-game	Medium
1002-find-common-characters	Easy

Hash Table

Problem Name	Difficulty
0001-two-sum	Easy
0202-happy-number	Easy
0205-isomorphic-strings	Easy
0219-contains-duplicate-ii	Easy
0242-valid-anagram	Easy
0290-word-pattern	Easy
0349-intersection-of-two-arrays	Easy
0387-first-unique-character-in-a-string	Easy
0389-find-the-difference	Easy
1002-find-common-characters	Easy

Math

Problem Name	Difficulty
0007-reverse-integer	Medium
0009-palindrome-number	Easy
0202-happy-number	Easy
0258-add-digits	Easy
0877-stone-game	Medium

Simulation

Problem Name	Difficulty
0258-add-digits	Easy

Number Theory

Problem Name	Difficulty
0258-add-digits	Easy

Binary Search

Problem Name	Difficulty
0074-search-a-2d-matrix	Medium
0349-intersection-of-two-arrays	Easy
0704-binary-search	Easy

Matrix

Problem Name	Difficulty
0074-search-a-2d-matrix	Medium

Two Pointers

Problem Name	Difficulty
0015-3sum	Medium
0202-happy-number	Easy
0349-intersection-of-two-arrays	Easy

Sorting

Problem Name	Difficulty
0015-3sum	Medium
0242-valid-anagram	Easy
0349-intersection-of-two-arrays	Easy
0389-find-the-difference	Easy

String

Problem Name	Difficulty
0205-isomorphic-strings	Easy
0242-valid-anagram	Easy
0290-word-pattern	Easy
0387-first-unique-character-in-a-string	Easy
0389-find-the-difference	Easy
1002-find-common-characters	Easy

Dynamic Programming

Problem Name	Difficulty
0877-stone-game	Medium

Minimax

Problem Name	Difficulty
0877-stone-game	Medium

Game Theory

Problem Name	Difficulty
0877-stone-game	Medium

Zero-Sum Game

Problem Name	Difficulty
0877-stone-game	Medium

Floyd's Cycle Finding Algorithm

Problem Name	Difficulty
0202-happy-number	Easy

Sliding Window

Problem Name	Difficulty
0219-contains-duplicate-ii	Easy

Queue

Problem Name	Difficulty
0387-first-unique-character-in-a-string	Easy

Counting

Problem Name	Difficulty
0387-first-unique-character-in-a-string	Easy

Bit Manipulation

Problem Name	Difficulty
0389-find-the-difference	Easy