LeetCode-Progress

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
0027-remove-element
0035-search-insert-position
0046-permutations
0118-pascals-triangle
0119-pascals-triangle-ii
0121-best-time-to-buy-and-sell-stock
0128-longest-consecutive-sequence
0167-two-sum-ii-input-array-is-sorted
0204-count-primes
0217-contains-duplicate
0238-product-of-array-except-self
0347-top-k-frequent-elements
0442-find-all-duplicates-in-an-array
0682-baseball-game
0739-daily-temperatures
0832-flipping-an-image
0989-add-to-array-form-of-integer
1051-height-checker
1331-rank-transform-of-an-array
1431-kids-with-the-greatest-number-of-candies
1979-find-greatest-common-divisor-of-array
2011-final-value-of-variable-after-performing-operations
2221-find-triangular-sum-of-an-array
2942-find-words-containing-character
3668-restore-finishing-order

Hash Table

0001-two-sum
0013-roman-to-integer
0128-longest-consecutive-sequence
0202-happy-number
0217-contains-duplicate
0242-valid-anagram
0347-top-k-frequent-elements
0442-find-all-duplicates-in-an-array
0771-jewels-and-stones
1331-rank-transform-of-an-array
3668-restore-finishing-order
3941-password-strength
3945-digit-frequency-score

Sorting

0217-contains-duplicate
0242-valid-anagram
0347-top-k-frequent-elements
0442-find-all-duplicates-in-an-array
1051-height-checker
1331-rank-transform-of-an-array

String

0013-roman-to-integer
0043-multiply-strings
0058-length-of-last-word
0125-valid-palindrome
0242-valid-anagram
0344-reverse-string
0412-fizz-buzz
0415-add-strings
0541-reverse-string-ii
0557-reverse-words-in-a-string-iii
0709-to-lower-case
0771-jewels-and-stones
1108-defanging-an-ip-address
2000-reverse-prefix-of-word
2011-final-value-of-variable-after-performing-operations
2390-removing-stars-from-a-string
2810-faulty-keyboard
2942-find-words-containing-character
3280-convert-date-to-binary
3941-password-strength

Divide and Conquer

0190-reverse-bits
0347-top-k-frequent-elements

Heap (Priority Queue)

0347-top-k-frequent-elements

Bucket Sort

0347-top-k-frequent-elements

Counting

0347-top-k-frequent-elements

Quickselect

0347-top-k-frequent-elements

Union-Find

0128-longest-consecutive-sequence

Two Pointers

0026-remove-duplicates-from-sorted-array
0027-remove-element
0125-valid-palindrome
0167-two-sum-ii-input-array-is-sorted
0202-happy-number
0344-reverse-string
0541-reverse-string-ii
0557-reverse-words-in-a-string-iii
0832-flipping-an-image
2000-reverse-prefix-of-word

Prefix Sum

0238-product-of-array-except-self

Binary Search

0035-search-insert-position
0069-sqrtx
0167-two-sum-ii-input-array-is-sorted

Dynamic Programming

0118-pascals-triangle
0119-pascals-triangle-ii
0121-best-time-to-buy-and-sell-stock
0509-fibonacci-number

Stack

0682-baseball-game
0739-daily-temperatures
2000-reverse-prefix-of-word
2390-removing-stars-from-a-string

Monotonic Stack

0739-daily-temperatures

Linked List

0206-reverse-linked-list

Recursion

0206-reverse-linked-list
0509-fibonacci-number

Math

0007-reverse-integer
0009-palindrome-number
0013-roman-to-integer
0043-multiply-strings
0069-sqrtx
0202-happy-number
0204-count-primes
0258-add-digits
0412-fizz-buzz
0415-add-strings
0509-fibonacci-number
0989-add-to-array-form-of-integer
1323-maximum-69-number
1492-the-kth-factor-of-n
1979-find-greatest-common-divisor-of-array
2119-a-number-after-a-double-reversal
2221-find-triangular-sum-of-an-array
2413-smallest-even-multiple
2427-number-of-common-factors
2469-convert-the-temperature
2525-categorize-box-according-to-criteria
3280-convert-date-to-binary
3658-gcd-of-odd-and-even-sums
3754-concatenate-non-zero-digits-and-multiply-by-sum-i
3945-digit-frequency-score

Simulation

0043-multiply-strings
0258-add-digits
0412-fizz-buzz
0415-add-strings
0682-baseball-game
0832-flipping-an-image
2011-final-value-of-variable-after-performing-operations
2221-find-triangular-sum-of-an-array
2390-removing-stars-from-a-string
2810-faulty-keyboard

Combinatorics

2221-find-triangular-sum-of-an-array

Number Theory

0204-count-primes
0258-add-digits
1492-the-kth-factor-of-n
1979-find-greatest-common-divisor-of-array
2221-find-triangular-sum-of-an-array
2413-smallest-even-multiple
2427-number-of-common-factors
3658-gcd-of-odd-and-even-sums

Backtracking

0046-permutations

Memoization

0509-fibonacci-number

Counting Sort

1051-height-checker

Greedy

1323-maximum-69-number

Bit Manipulation

0190-reverse-bits
0832-flipping-an-image

Matrix

0832-flipping-an-image

Enumeration

0204-count-primes
1291-sequential-digits
2427-number-of-common-factors