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

LeetCode Topics

Array

0039-combination-sum
0074-search-a-2d-matrix
0108-convert-sorted-array-to-binary-search-tree
0150-evaluate-reverse-polish-notation
0948-sort-an-array
1441-build-an-array-with-stack-operations
1570-final-prices-with-a-special-discount-in-a-shop
3242-count-elements-with-maximum-frequency

Divide and Conquer

0108-convert-sorted-array-to-binary-search-tree
0948-sort-an-array

Sorting

0948-sort-an-array

Heap (Priority Queue)

0948-sort-an-array

Merge Sort

0948-sort-an-array

Bucket Sort

0948-sort-an-array

Radix Sort

0948-sort-an-array

Counting Sort

0299-bulls-and-cows
0948-sort-an-array
3242-count-elements-with-maximum-frequency

Tree

0098-validate-binary-search-tree
0108-convert-sorted-array-to-binary-search-tree
0257-binary-tree-paths
0341-flatten-nested-list-iterator

Depth-First Search

0098-validate-binary-search-tree
0257-binary-tree-paths
0341-flatten-nested-list-iterator

Binary Search Tree

0074-search-a-2d-matrix
0098-validate-binary-search-tree
0108-convert-sorted-array-to-binary-search-tree
1023-time-based-key-value-store

Binary Tree

0098-validate-binary-search-tree
0108-convert-sorted-array-to-binary-search-tree
0257-binary-tree-paths

Matrix

0074-search-a-2d-matrix

Stack

0150-evaluate-reverse-polish-notation
0316-remove-duplicate-letters
0341-flatten-nested-list-iterator
1441-build-an-array-with-stack-operations
1570-final-prices-with-a-special-discount-in-a-shop

Monotonic Stack

0316-remove-duplicate-letters
1570-final-prices-with-a-special-discount-in-a-shop

String

0017-letter-combinations-of-a-phone-number
0022-generate-parentheses
0257-binary-tree-paths
0299-bulls-and-cows
0316-remove-duplicate-letters
1023-time-based-key-value-store

Backtracking

0017-letter-combinations-of-a-phone-number
0022-generate-parentheses
0039-combination-sum
0077-combinations
0257-binary-tree-paths
0401-binary-watch

Bit Manipulation

0401-binary-watch

Hash Table

0017-letter-combinations-of-a-phone-number
0299-bulls-and-cows
1023-time-based-key-value-store
3242-count-elements-with-maximum-frequency

Dynamic Programming

0022-generate-parentheses
0070-climbing-stairs

Math

0070-climbing-stairs
0150-evaluate-reverse-polish-notation

Memoization

0070-climbing-stairs

Design

0341-flatten-nested-list-iterator
1023-time-based-key-value-store

Queue

0341-flatten-nested-list-iterator

Iterator

0341-flatten-nested-list-iterator

Greedy

0316-remove-duplicate-letters

Simulation

1441-build-an-array-with-stack-operations