leetcode-algorithm

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

LeetCode Topics

Two Pointers

0011-container-with-most-water
0027-remove-element
0151-reverse-words-in-a-string
0283-move-zeroes
0345-reverse-vowels-of-a-string
0392-is-subsequence
1894-merge-strings-alternately

String

0151-reverse-words-in-a-string
0345-reverse-vowels-of-a-string
0392-is-subsequence
0394-decode-string
0649-dota2-senate
1146-greatest-common-divisor-of-strings
1894-merge-strings-alternately
2470-removing-stars-from-a-string

Array

0011-container-with-most-water
0027-remove-element
0238-product-of-array-except-self
0283-move-zeroes
0334-increasing-triplet-subsequence
0605-can-place-flowers
0724-find-pivot-index
0735-asteroid-collision
0739-daily-temperatures
1319-unique-number-of-occurrences
1528-kids-with-the-greatest-number-of-candies

Stack

0394-decode-string
0735-asteroid-collision
0739-daily-temperatures
2470-removing-stars-from-a-string

Monotonic Stack

0739-daily-temperatures

Dynamic Programming

0338-counting-bits
0392-is-subsequence

Prefix Sum

0238-product-of-array-except-self
0724-find-pivot-index

Greedy

0011-container-with-most-water
0334-increasing-triplet-subsequence
0605-can-place-flowers
0649-dota2-senate

Bit Manipulation

0338-counting-bits

Hash Table

1319-unique-number-of-occurrences

Simulation

0735-asteroid-collision
2470-removing-stars-from-a-string

Design

0969-number-of-recent-calls

Queue

0649-dota2-senate
0969-number-of-recent-calls

Data Stream

0969-number-of-recent-calls

Recursion

0394-decode-string

Tree

0104-maximum-depth-of-binary-tree
0783-search-in-a-binary-search-tree
0904-leaf-similar-trees
1544-count-good-nodes-in-binary-tree

Depth-First Search

0104-maximum-depth-of-binary-tree
0904-leaf-similar-trees
1544-count-good-nodes-in-binary-tree

Breadth-First Search

0104-maximum-depth-of-binary-tree
1544-count-good-nodes-in-binary-tree

Binary Tree

0104-maximum-depth-of-binary-tree
0783-search-in-a-binary-search-tree
0904-leaf-similar-trees
1544-count-good-nodes-in-binary-tree

Database

0176-second-highest-salary
0196-delete-duplicate-emails
0197-rising-temperature
0577-employee-bonus
0584-find-customer-referee
0595-big-countries
0596-classes-with-at-least-5-students
0610-triangle-judgement
0619-biggest-single-number
0620-not-boring-movies
1153-product-sales-analysis-i
1161-project-employees-i
1245-user-activity-for-the-past-30-days-i
1258-article-views-i
1338-queries-quality-and-percentage
1390-average-selling-price
1415-students-and-examinations
1462-list-the-products-ordered-in-a-period
1509-replace-employee-id-with-the-unique-identifier
1625-group-sold-products-by-the-date
1670-patients-with-a-condition
1724-customer-who-visited-but-did-not-make-any-transactions
1773-percentage-of-users-attended-a-contest
1801-average-time-of-process-per-machine
1811-fix-names-in-a-table
1827-invalid-tweets
1877-find-followers-count
1882-the-number-of-employees-which-report-to-each-employee
1908-recyclable-and-low-fat-products
1942-primary-department-for-each-employee
2127-employees-whose-manager-left-the-company
2495-number-of-unique-subjects-taught-by-each-teacher

Binary Search Tree

0783-search-in-a-binary-search-tree

Math

0009-palindrome-number
1146-greatest-common-divisor-of-strings