🔍 — Google

🏢 — Meta

📱 — Amazon

📱 — Microsoft

🏢 — Apple

🚖 — Uber

🏢 — Nvidia

🅰️ — Adobe

🚀 — Tesla

📱 — Snapchat

📱 — LinkedIn

🖼 — Canva

❤️ — Yandex

💰 — PayPal

📱 — Netflix

📱 — Bloomberg

📕 — Pinterest

📱 — Twitch

✴️ — Samsung

➡️ Array & Hash

➖Начало

🟢Easy
1331. Rank Transform of an Array
219. Contains Duplicate II

🟡Medium
532. K-diff Pairs in an Array
1711. Count Good Meals
3185. Count Pairs That Form a Complete Day II
3371. Identify the Largest Outlier in an Array
3404. Count Special Subsequences

🔴Hard
2488. Count Subarrays With Median K
1224. Maximum Equal Frequency

👩‍💻 Java Algorithms

➡️ Two Pointers

➖Начало

🟢Easy
1089. Duplicate Zeros
541. Reverse String II
27. Remove Element
925. Long Pressed Name

🟡Medium
151. Reverse Words in a String
2337. Move Pieces to Obtain a String
80. Remove Duplicates from Sorted Array II
1229. Meeting Scheduler

🔴Hard
1163. Last Substring in Lexicographical Order

👩‍💻 Java Algorithms

➡️ Prefix Sum

➖Начало

🟢Easy
724. Find Pivot Index
1413. Minimum Value to Get Positive Step by Step Sum
1422. Maximum Score After Splitting a String

🟡Medium
974. Subarray Sums Divisible by K
2270. Number of Ways to Split Array
3355. Zero Array Transformation I
3026. Maximum Good Subarray Sum

🔴Hard
798. Smallest Rotation with Highest Score

👩‍💻 Java Algorithms

➡️ Sliding window

➖Начало

🟢Easy
1652. Defuse the Bomb
2379. Minimum Recolors to Get K Consecutive Black Blocks

🟡Medium
2516. Take K of Each Character From Left and Right
2461. Maximum Sum of Distinct Subarrays With Length K
2134. Minimum Swaps to Group All 1's Together II
1234. Replace the Substring for Balanced String
904. Fruit Into Baskets

🔴Hard
2009. Minimum Number of Operations to Make Array Continuous
30. Substring with Concatenation of All Words

👩‍💻 Java Algorithms

➡️ Stack

➖Начало

🟢Easy
1047. Remove All Adjacent Duplicates In String
1475. Final Prices With a Special Discount in a Shop

🟡Medium
227. Basic Calculator II
1209. Remove All Adjacent Duplicates in String II
1673. Find the Most Competitive Subsequence
456. 132 Pattern

🔴Hard
1106. Parsing A Boolean Expression
1944. Number of Visible People in a Queue
768. Max Chunks To Make Sorted II
224. Basic Calculator

👩‍💻 Java Algorithms

➡️ Linked List

➖Начало

🟢Easy
876. Middle of the Linked List
203. Remove Linked List Elements
160. Intersection of Two Linked Lists

🟡Medium
24. Swap Nodes in Pairs
61. Rotate List
86. Partition List
92. Reverse Linked List II
148. Sort List

🔴Hard
23. Merge k Sorted Lists
25. Reverse Nodes in k-Group

👩‍💻 Java Algorithms

➡️ Binary Search

➖Начало

🟢Easy
35. Search Insert Position
69. Sqrt(x)
1539. Kth Missing Positive Number

🟡Medium
540. Single Element in a Sorted Array
2560. House Robber IV
2226. Maximum Candies Allocated to K Children
2300. Successful Pairs of Spells and Potions
1901. Find a Peak Element II
81. Search in Rotated Sorted Array II

🔴Hard
410. Split Array Largest Sum
1231. Divide Chocolate
4. Median of Two Sorted Arrays

👩‍💻 Java Algorithms

➡️ Binary Tree

➖Начало

🟢Easy
101. Symmetric Tree
404. Sum of Left Leaves
270. Closest Binary Search Tree Value

🟡Medium
863. All Nodes Distance K in Binary Tree
314. Binary Tree Vertical Order Traversal
99. Recover Binary Search Tree
662. Maximum Width of Binary Tree
687. Longest Univalue Path
545. Boundary of Binary Tree

🔴Hard
968. Binary Tree Cameras
272. Closest Binary Search Tree Value II
297. Serialize and Deserialize Binary Tree
1373. Maximum Sum BST in Binary Tree

👩‍💻 Java Algorithms

➡️ PriorityQueue

➖Начало

🟢Easy
1046. Last Stone Weight
703. Kth Largest Element in a Stream
3318. Find X-Sum of All K-Long Subarrays I

🟡Medium
253. Meeting Rooms II
2182. Construct String With Repeat Limit
1642. Furthest Building You Can Reach
1353. Maximum Number of Events That Can Be Attended
373. Find K Pairs with Smallest Sums
1834. Single-Threaded CPU

🔴Hard
632. Smallest Range Covering Elements from K Lists
2402. Meeting Rooms III
295. Find Median from Data Stream

👩‍💻 Java Algorithms