DSA_Que

A collection of LeetCode questions to ace the coding interview! - Created using LeetHub v2

LeetCode Topics

Array

0026-remove-duplicates-from-sorted-array
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0054-spiral-matrix
0074-search-a-2d-matrix
0088-merge-sorted-array
0121-best-time-to-buy-and-sell-stock
0204-count-primes
0268-missing-number
0287-find-the-duplicate-number
0532-k-diff-pairs-in-an-array
0643-maximum-average-subarray-i
0658-find-k-closest-elements
0724-find-pivot-index
0926-find-and-replace-pattern
2471-minimum-amount-of-time-to-collect-garbage

Prefix Sum

0724-find-pivot-index
2471-minimum-amount-of-time-to-collect-garbage

Binary Search

0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0069-sqrtx
0074-search-a-2d-matrix
0268-missing-number
0287-find-the-duplicate-number
0532-k-diff-pairs-in-an-array
0658-find-k-closest-elements

Math

0002-add-two-numbers
0069-sqrtx
0204-count-primes
0268-missing-number
0415-add-strings
2610-closest-prime-numbers-in-range
2871-double-a-number-represented-as-a-linked-list

Matrix

0054-spiral-matrix
0074-search-a-2d-matrix

Two Pointers

0026-remove-duplicates-from-sorted-array
0088-merge-sorted-array
0141-linked-list-cycle
0142-linked-list-cycle-ii
0234-palindrome-linked-list
0287-find-the-duplicate-number
0532-k-diff-pairs-in-an-array
0647-palindromic-substrings
0658-find-k-closest-elements
0680-valid-palindrome-ii
0908-middle-of-the-linked-list

Bit Manipulation

0268-missing-number
0287-find-the-duplicate-number

String

0020-valid-parentheses
0415-add-strings
0647-palindromic-substrings
0680-valid-palindrome-ii
0807-custom-sort-string
0926-find-and-replace-pattern
1128-remove-all-adjacent-duplicates-in-string
2021-remove-all-occurrences-of-a-substring
2471-minimum-amount-of-time-to-collect-garbage

Stack

0020-valid-parentheses
0234-palindrome-linked-list
1128-remove-all-adjacent-duplicates-in-string
2871-double-a-number-represented-as-a-linked-list

Greedy

0680-valid-palindrome-ii

Dynamic Programming

0121-best-time-to-buy-and-sell-stock
0647-palindromic-substrings

Hash Table

0141-linked-list-cycle
0142-linked-list-cycle-ii
0268-missing-number
0532-k-diff-pairs-in-an-array
0807-custom-sort-string
0926-find-and-replace-pattern

Sorting

0088-merge-sorted-array
0268-missing-number
0532-k-diff-pairs-in-an-array
0658-find-k-closest-elements
0807-custom-sort-string

Simulation

0054-spiral-matrix
0415-add-strings

Sliding Window

0643-maximum-average-subarray-i
0658-find-k-closest-elements

Heap (Priority Queue)

0658-find-k-closest-elements

Enumeration

0204-count-primes

Number Theory

0204-count-primes
2610-closest-prime-numbers-in-range

Linked List

0002-add-two-numbers
0025-reverse-nodes-in-k-group
0141-linked-list-cycle
0142-linked-list-cycle-ii
0206-reverse-linked-list
0234-palindrome-linked-list
0908-middle-of-the-linked-list
2871-double-a-number-represented-as-a-linked-list

Recursion

0002-add-two-numbers
0025-reverse-nodes-in-k-group
0206-reverse-linked-list
0234-palindrome-linked-list