A collection of LeetCode questions to ace the coding interview! - Powered by LeetHub v2

LeetCode Topics

Math

0231-power-of-two
0258-add-digits
0342-power-of-four
0628-maximum-product-of-three-numbers
1406-subtract-the-product-and-sum-of-digits-of-an-integer
2556-convert-the-temperature
2608-count-the-digits-that-divide-a-number
2624-difference-between-element-sum-and-digit-sum-of-an-array
2752-sum-multiples
2812-find-the-maximum-achievable-number
3172-divisible-and-non-divisible-sums-difference
3279-alice-and-bob-playing-flower-game
3321-type-of-triangle
3515-find-if-digit-game-can-be-won

Bit Manipulation

0231-power-of-two
0342-power-of-four

Recursion

0206-reverse-linked-list
0231-power-of-two
0342-power-of-four

Array

0026-remove-duplicates-from-sorted-array
0121-best-time-to-buy-and-sell-stock
0217-contains-duplicate
0628-maximum-product-of-three-numbers
1019-squares-of-a-sorted-array
1137-height-checker
1293-three-consecutive-odds
1677-matrix-diagonal-sum
1791-richest-customer-wealth
2219-maximum-number-of-words-found-in-sentences
2231-find-first-palindromic-string-in-the-array
2624-difference-between-element-sum-and-digit-sum-of-an-array
2876-number-of-employees-who-met-the-target
3194-find-words-containing-character
3226-minimum-number-game
3321-type-of-triangle
3515-find-if-digit-game-can-be-won
3788-maximum-unique-subarray-sum-after-deletion

Sorting

0217-contains-duplicate
0242-valid-anagram
0628-maximum-product-of-three-numbers
1019-squares-of-a-sorted-array
1137-height-checker
3226-minimum-number-game
3321-type-of-triangle

String

0006-zigzag-conversion
0020-valid-parentheses
0125-valid-palindrome
0242-valid-anagram
0387-first-unique-character-in-a-string
0520-detect-capital
1960-check-if-the-sentence-is-pangram
2219-maximum-number-of-words-found-in-sentences
2231-find-first-palindromic-string-in-the-array
3194-find-words-containing-character
3312-number-of-changing-keys
3379-score-of-a-string
3396-valid-word

Stack

0020-valid-parentheses
0232-implement-queue-using-stacks

Two Pointers

0026-remove-duplicates-from-sorted-array
0125-valid-palindrome
0141-linked-list-cycle
1019-squares-of-a-sorted-array
2231-find-first-palindromic-string-in-the-array

Counting Sort

0387-first-unique-character-in-a-string
1137-height-checker
1708-design-parking-system

Hash Table

0141-linked-list-cycle
0217-contains-duplicate
0242-valid-anagram
0387-first-unique-character-in-a-string
1960-check-if-the-sentence-is-pangram
3788-maximum-unique-subarray-sum-after-deletion

Greedy

3788-maximum-unique-subarray-sum-after-deletion

Matrix

1677-matrix-diagonal-sum
1791-richest-customer-wealth

Linked List

0141-linked-list-cycle
0206-reverse-linked-list

Design

0232-implement-queue-using-stacks
1708-design-parking-system

Simulation

0258-add-digits
1708-design-parking-system
3226-minimum-number-game

Queue

0232-implement-queue-using-stacks
0387-first-unique-character-in-a-string

Dynamic Programming

0121-best-time-to-buy-and-sell-stock

Heap (Priority Queue)

3226-minimum-number-game

Number Theory

0258-add-digits