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

LeetCode Topics

Array

0040-combination-sum-ii
0870-magic-squares-in-grid
0906-walking-robot-simulation
0952-word-subsets
1240-stone-game-ii
1691-minimum-number-of-days-to-disconnect-island
2006-find-the-student-that-will-replace-the-chalk
2132-convert-1d-array-into-2d-array
2155-find-missing-observations
2411-spiral-matrix-iv
2692-take-gifts-from-the-richest-pile
2695-find-score-of-an-array-after-marking-all-elements
2868-continuous-subarrays
2891-maximum-beauty-of-an-array-after-applying-operation
3501-delete-nodes-from-linked-list-present-in-array

Hash Table

0264-ugly-number-ii
0870-magic-squares-in-grid
0906-walking-robot-simulation
0952-word-subsets
1502-construct-k-palindrome-strings
2695-find-score-of-an-array-after-marking-all-elements
3267-find-longest-special-substring-that-occurs-thrice-i
3501-delete-nodes-from-linked-list-present-in-array

Math

0263-ugly-number
0264-ugly-number-ii
0650-2-keys-keyboard
0670-maximum-swap
0870-magic-squares-in-grid
1240-stone-game-ii
2155-find-missing-observations
2903-insert-greatest-common-divisors-in-linked-list

Matrix

0870-magic-squares-in-grid
1691-minimum-number-of-days-to-disconnect-island
2132-convert-1d-array-into-2d-array
2411-spiral-matrix-iv

Depth-First Search

1484-linked-list-in-binary-tree
1691-minimum-number-of-days-to-disconnect-island

Breadth-First Search

1484-linked-list-in-binary-tree
1691-minimum-number-of-days-to-disconnect-island

Strongly Connected Component

1691-minimum-number-of-days-to-disconnect-island

Tree

0789-kth-largest-element-in-a-stream
1484-linked-list-in-binary-tree

Design

0789-kth-largest-element-in-a-stream

Binary Search Tree

0789-kth-largest-element-in-a-stream
2006-find-the-student-that-will-replace-the-chalk
2891-maximum-beauty-of-an-array-after-applying-operation
3267-find-longest-special-substring-that-occurs-thrice-i

Heap (Priority Queue)

0264-ugly-number-ii
0789-kth-largest-element-in-a-stream
2692-take-gifts-from-the-richest-pile
2695-find-score-of-an-array-after-marking-all-elements
2868-continuous-subarrays

Binary Tree

0789-kth-largest-element-in-a-stream
1484-linked-list-in-binary-tree

Data Stream

0789-kth-largest-element-in-a-stream

Backtracking

0040-combination-sum-ii

Dynamic Programming

0264-ugly-number-ii
0650-2-keys-keyboard
1240-stone-game-ii

Prefix Sum

1240-stone-game-ii
2006-find-the-student-that-will-replace-the-chalk

Game Theory

1240-stone-game-ii

Bit Manipulation

0476-number-complement

Simulation

0906-walking-robot-simulation
2006-find-the-student-that-will-replace-the-chalk
2076-sum-of-digits-of-string-after-convert
2132-convert-1d-array-into-2d-array
2155-find-missing-observations
2411-spiral-matrix-iv
2692-take-gifts-from-the-richest-pile
2695-find-score-of-an-array-after-marking-all-elements

String

0952-word-subsets
1502-construct-k-palindrome-strings
2076-sum-of-digits-of-string-after-convert
3267-find-longest-special-substring-that-occurs-thrice-i

Linked List

1484-linked-list-in-binary-tree
2411-spiral-matrix-iv
2903-insert-greatest-common-divisors-in-linked-list
3501-delete-nodes-from-linked-list-present-in-array

Number Theory

2903-insert-greatest-common-divisors-in-linked-list

Greedy

0670-maximum-swap
1502-construct-k-palindrome-strings

Sliding Window

2868-continuous-subarrays
2891-maximum-beauty-of-an-array-after-applying-operation
3267-find-longest-special-substring-that-occurs-thrice-i

Counting

1502-construct-k-palindrome-strings
3267-find-longest-special-substring-that-occurs-thrice-i

Sorting

2695-find-score-of-an-array-after-marking-all-elements
2891-maximum-beauty-of-an-array-after-applying-operation

Queue

2868-continuous-subarrays

Ordered Set

2868-continuous-subarrays

Monotonic Queue

2868-continuous-subarrays