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

LeetCode Topics

Array

0001-two-sum
0026-remove-duplicates-from-sorted-array
0066-plus-one
0238-product-of-array-except-self
0268-missing-number
0792-binary-search
0890-lemonade-change
1217-relative-sort-array
1580-shuffle-the-array
1584-average-salary-excluding-the-minimum-and-maximum-salary
1677-matrix-diagonal-sum
1798-max-number-of-k-sum-pairs
1950-sign-of-the-product-of-an-array
2058-concatenation-of-array
2616-maximal-score-after-applying-k-operations
2624-difference-between-element-sum-and-digit-sum-of-an-array
2794-maximum-number-of-moves-in-a-grid
3194-find-words-containing-character
3522-find-the-power-of-k-size-subarrays-i

Hash Table

0001-two-sum
0242-valid-anagram
0268-missing-number
1217-relative-sort-array
1798-max-number-of-k-sum-pairs

Math

0009-palindrome-number
0066-plus-one
0070-climbing-stairs
0258-add-digits
0268-missing-number
0319-bulb-switcher
1013-fibonacci-number
1406-subtract-the-product-and-sum-of-digits-of-an-integer
1444-number-of-steps-to-reduce-a-number-to-zero
1630-count-odd-numbers-in-an-interval-range
1950-sign-of-the-product-of-an-array
2383-add-two-integers
2491-smallest-even-multiple
2556-convert-the-temperature
2608-count-the-digits-that-divide-a-number
2624-difference-between-element-sum-and-digit-sum-of-an-array
2903-insert-greatest-common-divisors-in-linked-list

String

0014-longest-common-prefix
0028-find-the-index-of-the-first-occurrence-in-a-string
0058-length-of-last-word
0242-valid-anagram
0957-minimum-add-to-make-parentheses-valid
1205-defanging-an-ip-address
1807-partitioning-into-minimum-number-of-deci-binary-numbers
1894-merge-strings-alternately
3194-find-words-containing-character
3195-separate-black-and-white-balls
3379-score-of-a-string
3451-string-compression-iii

Trie

0014-longest-common-prefix

Linked List

0021-merge-two-sorted-lists
0083-remove-duplicates-from-sorted-list
2903-insert-greatest-common-divisors-in-linked-list

Recursion

0021-merge-two-sorted-lists
1013-fibonacci-number

Two Pointers

0026-remove-duplicates-from-sorted-array
0028-find-the-index-of-the-first-occurrence-in-a-string
1798-max-number-of-k-sum-pairs
1894-merge-strings-alternately
3195-separate-black-and-white-balls

String Matching

0028-find-the-index-of-the-first-occurrence-in-a-string

Simulation

0258-add-digits
2058-concatenation-of-array

Number Theory

0258-add-digits
2491-smallest-even-multiple
2903-insert-greatest-common-divisors-in-linked-list

Brainteaser

0319-bulb-switcher

Binary Search

0268-missing-number
0792-binary-search

Bit Manipulation

0268-missing-number
1444-number-of-steps-to-reduce-a-number-to-zero

Sorting

0242-valid-anagram
0268-missing-number
1217-relative-sort-array
1584-average-salary-excluding-the-minimum-and-maximum-salary
1798-max-number-of-k-sum-pairs

Greedy

0890-lemonade-change
0957-minimum-add-to-make-parentheses-valid
1807-partitioning-into-minimum-number-of-deci-binary-numbers
2616-maximal-score-after-applying-k-operations
3195-separate-black-and-white-balls

Heap (Priority Queue)

2616-maximal-score-after-applying-k-operations

Dynamic Programming

0070-climbing-stairs
1013-fibonacci-number
2794-maximum-number-of-moves-in-a-grid

Matrix

1677-matrix-diagonal-sum
2794-maximum-number-of-moves-in-a-grid

Database

0175-combine-two-tables
0620-not-boring-movies

Stack

0155-min-stack
0957-minimum-add-to-make-parentheses-valid

Memoization

0070-climbing-stairs
1013-fibonacci-number

Sliding Window

3522-find-the-power-of-k-size-subarrays-i

Counting Sort

1217-relative-sort-array

Prefix Sum

0238-product-of-array-except-self

Design

0155-min-stack