leetcode-solutions

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

LeetCode Topics

Hash Table

0001-two-sum
0003-longest-substring-without-repeating-characters
0133-clone-graph
0217-contains-duplicate
0424-longest-repeating-character-replacement
3809-properties-graph
3838-path-existence-queries-in-a-graph-i

Depth-First Search

0133-clone-graph
0801-is-graph-bipartite
2439-longest-cycle-in-a-graph
3809-properties-graph

Breadth-First Search

0133-clone-graph
0801-is-graph-bipartite
2439-longest-cycle-in-a-graph
2671-shortest-cycle-in-a-graph
3809-properties-graph

Graph

0133-clone-graph
0801-is-graph-bipartite
1916-find-center-of-star-graph
2439-longest-cycle-in-a-graph
2590-maximum-star-sum-of-a-graph
2671-shortest-cycle-in-a-graph
3809-properties-graph
3838-path-existence-queries-in-a-graph-i

Union Find

0801-is-graph-bipartite
1223-graph-connectivity-with-threshold
3809-properties-graph
3838-path-existence-queries-in-a-graph-i

Array

0001-two-sum
0026-remove-duplicates-from-sorted-array
0053-maximum-subarray
0088-merge-sorted-array
0121-best-time-to-buy-and-sell-stock
0152-maximum-product-subarray
0217-contains-duplicate
0283-move-zeroes
1223-graph-connectivity-with-threshold
2590-maximum-star-sum-of-a-graph
3809-properties-graph
3838-path-existence-queries-in-a-graph-i

Math

1223-graph-connectivity-with-threshold

Number Theory

1223-graph-connectivity-with-threshold

Greedy

2590-maximum-star-sum-of-a-graph

Sorting

0088-merge-sorted-array
0217-contains-duplicate
2590-maximum-star-sum-of-a-graph

Heap (Priority Queue)

0789-kth-largest-element-in-a-stream
2590-maximum-star-sum-of-a-graph

Binary Search

3838-path-existence-queries-in-a-graph-i

Tree

0789-kth-largest-element-in-a-stream

Design

0789-kth-largest-element-in-a-stream

Binary Search Tree

0789-kth-largest-element-in-a-stream

Binary Tree

0789-kth-largest-element-in-a-stream

Data Stream

0789-kth-largest-element-in-a-stream

Topological Sort

2439-longest-cycle-in-a-graph

Two Pointers

0026-remove-duplicates-from-sorted-array
0088-merge-sorted-array
0283-move-zeroes

Dynamic Programming

0053-maximum-subarray
0121-best-time-to-buy-and-sell-stock
0152-maximum-product-subarray

Divide and Conquer

0053-maximum-subarray

String

0003-longest-substring-without-repeating-characters
0424-longest-repeating-character-replacement

Sliding Window

0003-longest-substring-without-repeating-characters
0424-longest-repeating-character-replacement

Database

0180-consecutive-numbers
0197-rising-temperature
0570-managers-with-at-least-5-direct-reports
0577-employee-bonus
0584-find-customer-referee
0595-big-countries
0610-triangle-judgement
0620-not-boring-movies
1068-product-sales-analysis-i
1075-project-employees-i
1148-article-views-i
1164-product-price-at-a-given-date
1193-monthly-transactions-i
1204-last-person-to-fit-in-the-bus
1211-queries-quality-and-percentage
1251-average-selling-price
1280-students-and-examinations
1378-replace-employee-id-with-the-unique-identifier
1581-customer-who-visited-but-did-not-make-any-transactions
1633-percentage-of-users-attended-a-contest
1661-average-time-of-process-per-machine
1683-invalid-tweets
1731-the-number-of-employees-which-report-to-each-employee
1757-recyclable-and-low-fat-products
1789-primary-department-for-each-employee
1907-count-salary-categories
1934-confirmation-rate