LeetCode

A collection of LeetCode problems and my solutions

LeetCode Topics

Array

0001-two-sum
0026-remove-duplicates-from-sorted-array
0027-remove-element
0066-plus-one
0118-pascals-triangle

Hash Table

0001-two-sum
0003-longest-substring-without-repeating-characters
0013-roman-to-integer

Math

0002-add-two-numbers
0009-palindrome-number
0013-roman-to-integer
0029-divide-two-integers
0066-plus-one
0067-add-binary
0069-sqrtx

String

0003-longest-substring-without-repeating-characters
0013-roman-to-integer
0014-longest-common-prefix
0020-valid-parentheses
0028-find-the-index-of-the-first-occurrence-in-a-string
0058-length-of-last-word
0067-add-binary

Trie

0014-longest-common-prefix

Linked List

0002-add-two-numbers
0021-merge-two-sorted-lists

Recursion

0002-add-two-numbers
0021-merge-two-sorted-lists

Stack

0020-valid-parentheses

Bit Manipulation

0029-divide-two-integers
0067-add-binary
0476-number-complement

Two Pointers

0026-remove-duplicates-from-sorted-array
0027-remove-element
0028-find-the-index-of-the-first-occurrence-in-a-string

String Matching

0028-find-the-index-of-the-first-occurrence-in-a-string

Binary Search

0069-sqrtx

Simulation

0067-add-binary

Sliding Window

0003-longest-substring-without-repeating-characters

Dynamic Programming

0118-pascals-triangle