leetcode

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

LeetCode Topics

Database

0175-combine-two-tables
0176-second-highest-salary
0184-department-highest-salary
0197-rising-temperature
0570-managers-with-at-least-5-direct-reports
0577-employee-bonus
0586-customer-placing-the-largest-number-of-orders
0595-big-countries
0601-human-traffic-of-stadium
0602-friend-requests-ii-who-has-the-most-friends
0608-tree-node
0610-triangle-judgement
0619-biggest-single-number
0627-swap-salary
1161-project-employees-i
1179-game-play-analysis-i
1258-article-views-i
1301-reformat-department-table
1317-monthly-transactions-i
1415-students-and-examinations
1462-list-the-products-ordered-in-a-period
1625-group-sold-products-by-the-date
1664-find-users-with-valid-e-mails
1670-patients-with-a-condition
1773-percentage-of-users-attended-a-contest
1801-average-time-of-process-per-machine
1827-invalid-tweets
2127-employees-whose-manager-left-the-company
2495-number-of-unique-subjects-taught-by-each-teacher

Math

0002-add-two-numbers
0007-reverse-integer
0233-number-of-digit-one
0268-missing-number
0507-perfect-number
1013-fibonacci-number
2383-add-two-integers
2679-count-distinct-numbers-on-board

Array

0001-two-sum
0004-median-of-two-sorted-arrays
0026-remove-duplicates-from-sorted-array
0041-first-missing-positive
0053-maximum-subarray
0075-sort-colors
0080-remove-duplicates-from-sorted-array-ii
0169-majority-element
0268-missing-number
0442-find-all-duplicates-in-an-array
1319-unique-number-of-occurrences
1574-maximum-product-of-two-elements-in-an-array
2679-count-distinct-numbers-on-board
3490-find-the-maximum-length-of-valid-subsequence-i

Hash Table

0001-two-sum
0041-first-missing-positive
0169-majority-element
0268-missing-number
0442-find-all-duplicates-in-an-array
1319-unique-number-of-occurrences
2679-count-distinct-numbers-on-board

Sorting

0075-sort-colors
0169-majority-element
0268-missing-number
1574-maximum-product-of-two-elements-in-an-array

Heap (Priority Queue)

1574-maximum-product-of-two-elements-in-an-array

Divide and Conquer

0004-median-of-two-sorted-arrays
0053-maximum-subarray
0169-majority-element

Counting

0169-majority-element

Dynamic Programming

0053-maximum-subarray
0233-number-of-digit-one
1013-fibonacci-number
3490-find-the-maximum-length-of-valid-subsequence-i

String

3396-valid-word

Recursion

0002-add-two-numbers
0021-merge-two-sorted-lists
0233-number-of-digit-one
1013-fibonacci-number

Memoization

1013-fibonacci-number

Binary Search

0004-median-of-two-sorted-arrays
0268-missing-number

Bit Manipulation

0268-missing-number

Two Pointers

0026-remove-duplicates-from-sorted-array
0075-sort-colors
0080-remove-duplicates-from-sorted-array-ii

Simulation

2679-count-distinct-numbers-on-board

Linked List

0002-add-two-numbers
0021-merge-two-sorted-lists