lee-code

Collection of LeetCode questions to ace the coding interview! - Created using LeetHub

LeetCode Topics

String

0010-regular-expression-matching
0013-roman-to-integer
0014-longest-common-prefix
0812-rotate-string
1302-delete-characters-to-make-fancy-string
1524-string-matching-in-an-array
1537-maximum-score-after-splitting-a-string
1786-count-the-number-of-consistent-strings
1895-minimum-number-of-operations-to-move-all-balls-to-each-box
2059-unique-length-3-palindromic-subsequences
2465-shifting-letters-ii
2691-count-vowel-strings-in-ranges

Trie

0014-longest-common-prefix

Array

0026-remove-duplicates-from-sorted-array
0088-merge-sorted-array
0407-trapping-rain-water-ii
1485-minimum-cost-to-make-at-least-one-valid-path-in-a-grid
1524-string-matching-in-an-array
1786-count-the-number-of-consistent-strings
1876-map-of-highest-peak
1895-minimum-number-of-operations-to-move-all-balls-to-each-box
2145-grid-game
2358-number-of-ways-to-split-array
2465-shifting-letters-ii
2533-bitwise-xor-of-all-pairings
2685-first-completely-painted-row-or-column
2691-count-vowel-strings-in-ranges

Two Pointers

0026-remove-duplicates-from-sorted-array
0088-merge-sorted-array

Sorting

0088-merge-sorted-array

Tree

0102-binary-tree-level-order-traversal
3058-maximum-number-of-k-divisible-components

Breadth-First Search

0102-binary-tree-level-order-traversal
0407-trapping-rain-water-ii
1485-minimum-cost-to-make-at-least-one-valid-path-in-a-grid
1876-map-of-highest-peak

Binary Tree

0102-binary-tree-level-order-traversal

Database

0175-combine-two-tables

Linked List

0002-add-two-numbers

Math

0002-add-two-numbers
0009-palindrome-number
0013-roman-to-integer
2383-add-two-integers

Recursion

0002-add-two-numbers
0010-regular-expression-matching

Hash Table

0013-roman-to-integer
1786-count-the-number-of-consistent-strings
2059-unique-length-3-palindromic-subsequences
2685-first-completely-painted-row-or-column

Bit Manipulation

1786-count-the-number-of-consistent-strings
2059-unique-length-3-palindromic-subsequences
2509-minimize-xor
2533-bitwise-xor-of-all-pairings

Counting

1786-count-the-number-of-consistent-strings

Dynamic Programming

0010-regular-expression-matching

String Matching

0812-rotate-string
1524-string-matching-in-an-array

Depth-First Search

3058-maximum-number-of-k-divisible-components

Prefix Sum

1537-maximum-score-after-splitting-a-string
1895-minimum-number-of-operations-to-move-all-balls-to-each-box
2059-unique-length-3-palindromic-subsequences
2145-grid-game
2358-number-of-ways-to-split-array
2465-shifting-letters-ii
2691-count-vowel-strings-in-ranges

Greedy

2509-minimize-xor

Brainteaser

2533-bitwise-xor-of-all-pairings

Graph

1485-minimum-cost-to-make-at-least-one-valid-path-in-a-grid

Heap (Priority Queue)

0407-trapping-rain-water-ii
1485-minimum-cost-to-make-at-least-one-valid-path-in-a-grid

Matrix

0407-trapping-rain-water-ii
1485-minimum-cost-to-make-at-least-one-valid-path-in-a-grid
1876-map-of-highest-peak
2145-grid-game
2685-first-completely-painted-row-or-column

Shortest Path

1485-minimum-cost-to-make-at-least-one-valid-path-in-a-grid