leetcode

Collection of my LeetCode solutions and algorithm practice. Focused on Data Structures and Algorithms (DSA) efficiency and optimization

LeetCode Topics

Array

0001-two-sum
0011-container-with-most-water
0015-3sum
0036-valid-sudoku
0042-trapping-rain-water
0049-group-anagrams
0128-longest-consecutive-sequence
0167-two-sum-ii-input-array-is-sorted
0217-contains-duplicate
0238-product-of-array-except-self
0347-top-k-frequent-elements

Hash Table

0001-two-sum
0036-valid-sudoku
0049-group-anagrams
0128-longest-consecutive-sequence
0217-contains-duplicate
0347-top-k-frequent-elements

Divide and Conquer

0347-top-k-frequent-elements

Sorting

0015-3sum
0049-group-anagrams
0217-contains-duplicate
0347-top-k-frequent-elements

Heap (Priority Queue)

0347-top-k-frequent-elements

Bucket Sort

0347-top-k-frequent-elements

Counting

0347-top-k-frequent-elements

Quickselect

0347-top-k-frequent-elements

String

0049-group-anagrams
0125-valid-palindrome

Prefix Sum

0238-product-of-array-except-self

Matrix

0036-valid-sudoku

Two Pointers

0011-container-with-most-water
0015-3sum
0042-trapping-rain-water
0125-valid-palindrome
0167-two-sum-ii-input-array-is-sorted

Union-Find

0128-longest-consecutive-sequence

Binary Search

0167-two-sum-ii-input-array-is-sorted

Greedy

0011-container-with-most-water

Dynamic Programming

0042-trapping-rain-water

Stack

0042-trapping-rain-water

Monotonic Stack

0042-trapping-rain-water