DSA-Practice

Collection of Data Structures and Algorithms problems I solve during practice.

LeetCode Topics

Two Pointers

0011-container-with-most-water
0015-3sum
0026-remove-duplicates-from-sorted-array
0125-valid-palindrome
0344-reverse-string
0349-intersection-of-two-arrays
0350-intersection-of-two-arrays-ii
0443-string-compression
0567-permutation-in-string

String

0014-longest-common-prefix
0125-valid-palindrome
0242-valid-anagram
0344-reverse-string
0443-string-compression
0567-permutation-in-string
1128-remove-all-adjacent-duplicates-in-string
2021-remove-all-occurrences-of-a-substring

Math

0007-reverse-integer
0009-palindrome-number
0048-rotate-image
0050-powx-n
0268-missing-number

Recursion

0050-powx-n

Array

0001-two-sum
0011-container-with-most-water
0014-longest-common-prefix
0015-3sum
0026-remove-duplicates-from-sorted-array
0048-rotate-image
0053-maximum-subarray
0054-spiral-matrix
0074-search-a-2d-matrix
0121-best-time-to-buy-and-sell-stock
0136-single-number
0152-maximum-product-subarray
0169-majority-element
0238-product-of-array-except-self
0240-search-a-2d-matrix-ii
0268-missing-number
0349-intersection-of-two-arrays
0350-intersection-of-two-arrays-ii
0442-find-all-duplicates-in-an-array
0792-binary-search
1319-unique-number-of-occurrences
1849-maximum-absolute-sum-of-any-subarray

Divide and Conquer

0053-maximum-subarray
0169-majority-element
0240-search-a-2d-matrix-ii

Dynamic Programming

0053-maximum-subarray
0121-best-time-to-buy-and-sell-stock
0152-maximum-product-subarray
1849-maximum-absolute-sum-of-any-subarray

Stack

1128-remove-all-adjacent-duplicates-in-string
2021-remove-all-occurrences-of-a-substring

Simulation

0054-spiral-matrix
2021-remove-all-occurrences-of-a-substring

Hash Table

0001-two-sum
0169-majority-element
0242-valid-anagram
0268-missing-number
0349-intersection-of-two-arrays
0350-intersection-of-two-arrays-ii
0442-find-all-duplicates-in-an-array
0567-permutation-in-string
1319-unique-number-of-occurrences

Sliding Window

0567-permutation-in-string

Matrix

0048-rotate-image
0054-spiral-matrix
0074-search-a-2d-matrix
0240-search-a-2d-matrix-ii

Binary Search

0074-search-a-2d-matrix
0240-search-a-2d-matrix-ii
0268-missing-number
0349-intersection-of-two-arrays
0350-intersection-of-two-arrays-ii
0792-binary-search

Bit Manipulation

0136-single-number
0268-missing-number

Sorting

0015-3sum
0169-majority-element
0242-valid-anagram
0268-missing-number
0349-intersection-of-two-arrays
0350-intersection-of-two-arrays-ii

Prefix Sum

0238-product-of-array-except-self

Greedy

0011-container-with-most-water

Counting

0169-majority-element

Trie

0014-longest-common-prefix