Hash Table Problems

No.	Title	Solution	Tags	Difficulty
0705	Design HashSet	[[LeetCode XXXX]]	Design, Array, Hash Table, Linked List, Hash Function	Easy
0706	Design HashMap	[[LeetCode XXXX]]	Design, Array, Hash Table, Linked List, Hash Function	Easy
0217	Contains Duplicate	[[LeetCode XXXX]]	Array, Hash Table, Sorting	Easy
0219	Contains Duplicate II	[[LeetCode XXXX]]	Array, Hash Table, Sliding Window	Easy
0220	Contains Duplicate III	[[LeetCode 0220]]	Array, Bucket Sort, Ordered Set, Sorting, Sliding Window	Hard
1941	Check if All Characters Have Equal Number of Occurrences	[[LeetCode XXXX]]	Hash Table, String, Counting	Easy
0136	Single Number	[[LeetCode XXXX]]	Bit Manipulation, Array	Easy
0383	Ransom Note	[[LeetCode XXXX]]	Hash Table, String, Counting	Easy
0349	Intersection of Two Arrays	[[LeetCode XXXX]]	Array, Hash Table, Two Pointers, Binary Search, Sorting	Easy
0350	Intersection of Two Arrays II	[[LeetCode XXXX]]	Array, Hash Table, Two Pointers, Binary Search, Sorting	Easy
0036	Valid Sudoku	[[LeetCode XXXX]]	Array, Hash Table, Matrix	Medium
0001	Two Sum	[[LeetCode XXXX]]	Array, Hash Table	Easy
0015	3Sum	[[LeetCode XXXX]]	Array, Two Pointers, Sorting	Medium
0018	4Sum	[[LeetCode XXXX]]	Array, Two Pointers, Sorting	Medium
0454	4Sum II	[[LeetCode XXXX]]	Array, Hash Table	Medium
0041	First Missing Positive	[[LeetCode 0041]]	Array, Hash Table	Hard
0128	Longest Consecutive Sequence	[[LeetCode XXXX]]	Union Find, Array, Hash Table	Medium
0202	Happy Number	[[LeetCode XXXX]]	Hash Table, Mathematics, Two Pointers	Easy
0242	Valid Anagram	[[LeetCode XXXX]]	Hash Table, String, Sorting	Easy
0205	Isomorphic Strings	[[LeetCode XXXX]]	Hash Table, String	Easy
0442	Find All Duplicates in an Array		Array, Hash Table	Medium
0268	Missing Number	[[LeetCode XXXX]]	Bit Manipulation, Array, Hash Table, Mathematics, Binary Search, Sorting	Easy
0451	Sort Characters By Frequency	[[LeetCode XXXX]]	Hash Table, String, Bucket Sort, Counting, Sorting, Heap (Priority Queue)	Medium
0049	Group Anagrams	[[LeetCode XXXX]]	Array, Hash Table, String, Sorting	Medium
0599	Minimum Index Sum of Two Lists	[[LeetCode XXXX]]	Array, Hash Table, String	Easy
0387	First Unique Character in a String	[[LeetCode XXXX]]	Queue, Hash Table, String, Counting	Easy
0447	Number of Boomerangs	[[LeetCode XXXX]]	Array, Hash Table, Mathematics	Medium
0149	Max Points on a Line	[[LeetCode 0149]]	Geometry, Array, Hash Table, Mathematics	Hard
0359	Logger Rate Limiter	[[LeetCode XXXX]]	Design, Hash Table	Easy
0811	Subdomain Visit Count	[[LeetCode XXXX]]	Array, Hash Table, String, Counting	Medium