LeetCode

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

LeetCode Topics

Array

0001-two-sum
0011-container-with-most-water
0015-3sum
0016-3sum-closest
0167-two-sum-ii-input-array-is-sorted

Hash Table

0001-two-sum
0003-longest-substring-without-repeating-characters
0012-integer-to-roman
0013-roman-to-integer
0017-letter-combinations-of-a-phone-number

Math

0002-add-two-numbers
0007-reverse-integer
0009-palindrome-number
0012-integer-to-roman
0013-roman-to-integer

Linked List

0002-add-two-numbers
0019-remove-nth-node-from-end-of-list

Recursion

0002-add-two-numbers

String

0003-longest-substring-without-repeating-characters
0005-longest-palindromic-substring
0006-zigzag-conversion
0008-string-to-integer-atoi
0012-integer-to-roman
0013-roman-to-integer
0014-longest-common-prefix
0017-letter-combinations-of-a-phone-number
0020-valid-parentheses

Sliding Window

0003-longest-substring-without-repeating-characters

Trie

0014-longest-common-prefix

Stack

0020-valid-parentheses

Database

0175-combine-two-tables
0176-second-highest-salary
0177-nth-highest-salary
0180-consecutive-numbers
0181-employees-earning-more-than-their-managers
0182-duplicate-emails
0183-customers-who-never-order
0184-department-highest-salary
0196-delete-duplicate-emails
0197-rising-temperature
0550-game-play-analysis-iv
0570-managers-with-at-least-5-direct-reports
0577-employee-bonus
0584-find-customer-referee
0586-customer-placing-the-largest-number-of-orders
0595-big-countries
0596-classes-with-at-least-5-students
0602-friend-requests-ii-who-has-the-most-friends
0607-sales-person
0610-triangle-judgement
0619-biggest-single-number
0620-not-boring-movies
0627-swap-sex-of-employees
1050-actors-and-directors-who-cooperated-at-least-three-times
1068-product-sales-analysis-i
1075-project-employees-i
1084-sales-analysis-iii
1141-user-activity-for-the-past-30-days-i
1148-article-views-i
1179-game-play-analysis-i
1179-reformat-department-table
1204-last-person-to-fit-in-the-bus
1211-queries-quality-and-percentage
1321-restaurant-growth
1341-movie-rating

Two Pointers

0005-longest-palindromic-substring
0011-container-with-most-water
0015-3sum
0016-3sum-closest
0019-remove-nth-node-from-end-of-list
0167-two-sum-ii-input-array-is-sorted

Dynamic Programming

0005-longest-palindromic-substring

Greedy

0011-container-with-most-water

Binary Search

0167-two-sum-ii-input-array-is-sorted

Sorting

0015-3sum
0016-3sum-closest

Backtracking

0017-letter-combinations-of-a-phone-number