leetcode

This repository contains my every day leet code submission.

LeetCode Topics

Array

0001-two-sum
0011-container-with-most-water
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0036-valid-sudoku
0041-first-missing-positive
0056-merge-intervals
0081-search-in-rotated-sorted-array-ii
0136-single-number
0152-maximum-product-subarray
0162-find-peak-element
0238-product-of-array-except-self
0283-move-zeroes
0334-increasing-triplet-subsequence
0349-intersection-of-two-arrays
0368-largest-divisible-subset
0416-partition-equal-subset-sum
0506-relative-ranks
0540-single-element-in-a-sorted-array
0605-can-place-flowers
0643-maximum-average-subarray-i
0735-asteroid-collision
0797-rabbits-in-forest
0907-koko-eating-bananas
1319-unique-number-of-occurrences
1335-maximum-candies-allocated-to-k-children
1392-find-the-difference-of-two-arrays
1408-find-the-smallest-divisor-given-a-threshold
1528-kids-with-the-greatest-number-of-candies
1646-kth-missing-positive-number
1656-count-good-triplets
1798-max-number-of-k-sum-pairs
1993-sum-of-all-subset-xor-totals
2160-minimum-operations-to-make-a-uni-value-grid
2220-find-all-possible-recipes-from-given-supplies
2249-count-the-hidden-sequences
2262-solving-questions-with-brainpower
2265-partition-array-according-to-given-pivot
2277-count-equal-and-divisible-pairs-in-an-array
2280-count-good-triplets-in-an-array
2308-divide-array-into-equal-pairs
2392-successful-pairs-of-spells-and-potions
2428-equal-row-and-column-pairs
2478-longest-nice-subarray
2527-count-subarrays-with-fixed-bounds
2614-maximum-count-of-positive-integer-and-negative-integer
2626-count-the-number-of-good-subarrays
2665-minimum-time-to-repair-cars
2681-put-marbles-in-bags
2690-house-robber-iv
2699-count-the-number-of-fair-pairs
2707-merge-two-2d-arrays-by-summing-values
2856-count-complete-subarrays-in-an-array
2888-minimum-index-of-a-valid-split
2915-count-of-interesting-subarrays
3001-apply-operations-to-maximize-score
3152-maximum-value-of-an-ordered-triplet-ii
3154-maximum-value-of-an-ordered-triplet-i
3227-find-missing-and-repeated-values
3348-minimum-cost-walk-in-weighted-graph
3430-count-days-without-meetings
3475-minimum-operations-to-make-binary-array-elements-equal-to-one-i
3483-alternating-groups-ii
3621-minimum-operations-to-make-array-values-equal-to-k
3643-zero-array-transformation-ii
3656-minimum-number-of-operations-to-make-elements-in-array-distinct
3657-check-if-grid-can-be-cut-into-sections
3685-count-subarrays-of-length-three-with-a-condition

Hash Table

0001-two-sum
0036-valid-sudoku
0041-first-missing-positive
0349-intersection-of-two-arrays
0768-partition-labels
0797-rabbits-in-forest
1218-lowest-common-ancestor-of-deepest-leaves
1319-unique-number-of-occurrences
1392-find-the-difference-of-two-arrays
1460-number-of-substrings-containing-all-three-characters
1500-count-largest-group
1777-determine-if-two-strings-are-close
1798-max-number-of-k-sum-pairs
2220-find-all-possible-recipes-from-given-supplies
2308-divide-array-into-equal-pairs
2428-equal-row-and-column-pairs
2626-count-the-number-of-good-subarrays
2707-merge-two-2d-arrays-by-summing-values
2856-count-complete-subarrays-in-an-array
2888-minimum-index-of-a-valid-split
2915-count-of-interesting-subarrays
3227-find-missing-and-repeated-values
3548-find-the-count-of-good-integers
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii
3621-minimum-operations-to-make-array-values-equal-to-k
3656-minimum-number-of-operations-to-make-elements-in-array-distinct

Two Pointers

0011-container-with-most-water
0028-find-the-index-of-the-first-occurrence-in-a-string
0151-reverse-words-in-a-string
0283-move-zeroes
0345-reverse-vowels-of-a-string
0349-intersection-of-two-arrays
0392-is-subsequence
0443-string-compression
0768-partition-labels
1798-max-number-of-k-sum-pairs
1894-merge-strings-alternately
2265-partition-array-according-to-given-pivot
2392-successful-pairs-of-spells-and-potions
2699-count-the-number-of-fair-pairs
2707-merge-two-2d-arrays-by-summing-values

Simulation

0735-asteroid-collision
2265-partition-array-according-to-given-pivot
2428-equal-row-and-column-pairs
2470-removing-stars-from-a-string

Math

0368-largest-divisible-subset
0797-rabbits-in-forest
1500-count-largest-group
1889-check-if-number-is-a-sum-of-powers-of-three
1993-sum-of-all-subset-xor-totals
2050-count-good-numbers
2160-minimum-operations-to-make-a-uni-value-grid
2610-closest-prime-numbers-in-range
2649-count-total-number-of-colored-cells
2998-count-symmetric-integers
3001-apply-operations-to-maximize-score
3227-find-missing-and-repeated-values
3243-count-the-number-of-powerful-integers
3279-alice-and-bob-playing-flower-game
3548-find-the-count-of-good-integers

Matrix

0036-valid-sudoku
2160-minimum-operations-to-make-a-uni-value-grid
2428-equal-row-and-column-pairs
3227-find-missing-and-repeated-values

Number Theory

2610-closest-prime-numbers-in-range
3001-apply-operations-to-maximize-score

String

0008-string-to-integer-atoi
0020-valid-parentheses
0028-find-the-index-of-the-first-occurrence-in-a-string
0038-count-and-say
0151-reverse-words-in-a-string
0345-reverse-vowels-of-a-string
0392-is-subsequence
0394-decode-string
0443-string-compression
0768-partition-labels
1460-number-of-substrings-containing-all-three-characters
1777-determine-if-two-strings-are-close
1894-merge-strings-alternately
2220-find-all-possible-recipes-from-given-supplies
2463-minimum-recolors-to-get-k-consecutive-black-blocks
2470-removing-stars-from-a-string
3243-count-the-number-of-powerful-integers
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii

Sliding Window

0643-maximum-average-subarray-i
1460-number-of-substrings-containing-all-three-characters
2463-minimum-recolors-to-get-k-consecutive-black-blocks
2478-longest-nice-subarray
2527-count-subarrays-with-fixed-bounds
2626-count-the-number-of-good-subarrays
2856-count-complete-subarrays-in-an-array
3475-minimum-operations-to-make-binary-array-elements-equal-to-one-i
3483-alternating-groups-ii
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii

Binary Search

0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0081-search-in-rotated-sorted-array-ii
0162-find-peak-element
0349-intersection-of-two-arrays
0374-guess-number-higher-or-lower
0540-single-element-in-a-sorted-array
0907-koko-eating-bananas
1335-maximum-candies-allocated-to-k-children
1408-find-the-smallest-divisor-given-a-threshold
1646-kth-missing-positive-number
2280-count-good-triplets-in-an-array
2392-successful-pairs-of-spells-and-potions
2614-maximum-count-of-positive-integer-and-negative-integer
2665-minimum-time-to-repair-cars
2690-house-robber-iv
2699-count-the-number-of-fair-pairs
3643-zero-array-transformation-ii

Counting

1777-determine-if-two-strings-are-close
2308-divide-array-into-equal-pairs
2614-maximum-count-of-positive-integer-and-negative-integer

Prefix Sum

0238-product-of-array-except-self
2249-count-the-hidden-sequences
2915-count-of-interesting-subarrays
3475-minimum-operations-to-make-binary-array-elements-equal-to-one-i
3643-zero-array-transformation-ii

Bit Manipulation

0136-single-number
1993-sum-of-all-subset-xor-totals
2308-divide-array-into-equal-pairs
2478-longest-nice-subarray
3348-minimum-cost-walk-in-weighted-graph
3475-minimum-operations-to-make-binary-array-elements-equal-to-one-i

Queue

2527-count-subarrays-with-fixed-bounds
3475-minimum-operations-to-make-binary-array-elements-equal-to-one-i

Union Find

2793-count-the-number-of-complete-components
3348-minimum-cost-walk-in-weighted-graph

Graph

2090-number-of-ways-to-arrive-at-destination
2220-find-all-possible-recipes-from-given-supplies
2793-count-the-number-of-complete-components
3348-minimum-cost-walk-in-weighted-graph

Topological Sort

2090-number-of-ways-to-arrive-at-destination
2220-find-all-possible-recipes-from-given-supplies

Depth-First Search

1218-lowest-common-ancestor-of-deepest-leaves
2793-count-the-number-of-complete-components

Breadth-First Search

1218-lowest-common-ancestor-of-deepest-leaves
2793-count-the-number-of-complete-components

Database

0177-nth-highest-salary
0180-consecutive-numbers
0197-rising-temperature
0550-game-play-analysis-iv
0570-managers-with-at-least-5-direct-reports
0577-employee-bonus
0584-find-customer-referee
0595-big-countries
0620-not-boring-movies
1045-customers-who-bought-all-products
1070-product-sales-analysis-iii
1153-product-sales-analysis-i
1164-product-price-at-a-given-date
1174-immediate-food-delivery-ii
1193-monthly-transactions-i
1204-last-person-to-fit-in-the-bus
1258-article-views-i
1280-students-and-examinations
1341-movie-rating
1509-replace-employee-id-with-the-unique-identifier
1724-customer-who-visited-but-did-not-make-any-transactions
1827-invalid-tweets
1907-count-salary-categories
1908-recyclable-and-low-fat-products
1934-confirmation-rate
1978-employees-whose-manager-left-the-company
2356-number-of-unique-subjects-taught-by-each-teacher

Dynamic Programming

0152-maximum-product-subarray
0368-largest-divisible-subset
0392-is-subsequence
0416-partition-equal-subset-sum
2090-number-of-ways-to-arrive-at-destination
2262-solving-questions-with-brainpower
3243-count-the-number-of-powerful-integers

Shortest Path

2090-number-of-ways-to-arrive-at-destination

Sorting

0056-merge-intervals
0349-intersection-of-two-arrays
0368-largest-divisible-subset
0506-relative-ranks
1777-determine-if-two-strings-are-close
1798-max-number-of-k-sum-pairs
2160-minimum-operations-to-make-a-uni-value-grid
2392-successful-pairs-of-spells-and-potions
2681-put-marbles-in-bags
2699-count-the-number-of-fair-pairs
2888-minimum-index-of-a-valid-split
3001-apply-operations-to-maximize-score
3430-count-days-without-meetings
3657-check-if-grid-can-be-cut-into-sections

Stack

0020-valid-parentheses
0394-decode-string
0735-asteroid-collision
2470-removing-stars-from-a-string
3001-apply-operations-to-maximize-score

Greedy

0011-container-with-most-water
0334-increasing-triplet-subsequence
0605-can-place-flowers
0768-partition-labels
0797-rabbits-in-forest
2681-put-marbles-in-bags
3001-apply-operations-to-maximize-score

Monotonic Stack

3001-apply-operations-to-maximize-score

Heap (Priority Queue)

0506-relative-ranks
2681-put-marbles-in-bags

Tree

1218-lowest-common-ancestor-of-deepest-leaves

Binary Tree

1218-lowest-common-ancestor-of-deepest-leaves

Backtracking

1993-sum-of-all-subset-xor-totals

Combinatorics

1993-sum-of-all-subset-xor-totals
3548-find-the-count-of-good-integers

Enumeration

1656-count-good-triplets
1993-sum-of-all-subset-xor-totals
2998-count-symmetric-integers
3548-find-the-count-of-good-integers

Recursion

0394-decode-string
2050-count-good-numbers

Divide and Conquer

2280-count-good-triplets-in-an-array

Binary Indexed Tree

2280-count-good-triplets-in-an-array

Segment Tree

2280-count-good-triplets-in-an-array

Merge Sort

2280-count-good-triplets-in-an-array

Ordered Set

2280-count-good-triplets-in-an-array

Monotonic Queue

2527-count-subarrays-with-fixed-bounds

Interactive

0374-guess-number-higher-or-lower

String Matching

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