Все теги

Array

• 01 Matrix
• 3Sum
• Best Time to Buy and Sell Stock
• Binary Search
• Coin Change
• Contains Duplicate
• Flood Fill
• Insert Interval
• K Closest Points to Origin
• Longest Subarray of 1's After Deleting One Element
• Majority Element
• Max Consecutive Ones
• Maximum Subarray
• Number of Islands
• Rotting Oranges
• Two Sum

Binary Search

• Binary Search
• First Bad Version

Binary Search Tree

• Lowest Common Ancestor of a Binary Search Tree
• Validate Binary Search Tree

Binary Tree

• Balanced Binary Tree
• Binary Tree Level Order Traversal
• Diameter of Binary Tree
• Invert Binary Tree
• Lowest Common Ancestor of a Binary Search Tree
• Maximum Depth of Binary Tree
• Validate Binary Search Tree

Bit Manipulation

• Add Binary

Breadth-First Search

• 01 Matrix
• Binary Tree Level Order Traversal
• Coin Change
• Flood Fill
• Invert Binary Tree
• Maximum Depth of Binary Tree
• Number of Islands
• Rotting Oranges

Counting

• Majority Element
• Ransom Note

Depth-First Search

• Balanced Binary Tree
• Diameter of Binary Tree
• Flood Fill
• Invert Binary Tree
• Lowest Common Ancestor of a Binary Search Tree
• Maximum Depth of Binary Tree
• Number of Islands
• Validate Binary Search Tree

Design

• Implement Queue using Stacks

Divide and Conquer

• K Closest Points to Origin
• Majority Element
• Maximum Subarray

Dynamic Programming

• 01 Matrix
• Best Time to Buy and Sell Stock
• Climbing Stairs
• Coin Change
• Longest Subarray of 1's After Deleting One Element
• Maximum Subarray

Easy

• Add Binary
• Balanced Binary Tree
• Best Time to Buy and Sell Stock
• Binary Search
• Climbing Stairs
• Contains Duplicate
• Diameter of Binary Tree
• First Bad Version
• Flood Fill
• Implement Queue using Stacks
• Invert Binary Tree
• Linked List Cycle
• Longest Palindrome
• Majority Element
• Max Consecutive Ones
• Maximum Depth of Binary Tree
• Merge Two Sorted Lists
• Middle of the Linked List
• Ransom Note
• Reverse Linked List
• Two Sum
• Valid Anagram
• Valid Palindrome
• Valid Parentheses

Geometry

• K Closest Points to Origin

Greedy

• Longest Palindrome

Hash Table

• Contains Duplicate
• Linked List Cycle
• Longest Palindrome
• Longest Substring Without Repeating Characters
• Majority Element
• Ransom Note
• Two Sum
• Valid Anagram

Heap (Priority Queue)

• K Closest Points to Origin

Interactive

• First Bad Version

Linked List

• Linked List Cycle
• Merge Two Sorted Lists
• Middle of the Linked List
• Reverse Linked List

Math

• Add Binary
• Climbing Stairs
• K Closest Points to Origin

Matrix

• 01 Matrix
• Flood Fill
• Number of Islands
• Rotting Oranges

Medium

• 01 Matrix
• 3Sum
• Binary Tree Level Order Traversal
• Coin Change
• Insert Interval
• K Closest Points to Origin
• Longest Subarray of 1's After Deleting One Element
• Longest Substring Without Repeating Characters
• Lowest Common Ancestor of a Binary Search Tree
• Maximum Subarray
• Number of Islands
• Rotting Oranges
• Validate Binary Search Tree

Memoization

• Climbing Stairs

Queue

• Implement Queue using Stacks

Quickselect

• K Closest Points to Origin

Recursion

• Merge Two Sorted Lists
• Reverse Linked List

Simulation

• Add Binary

Sliding Window

• Longest Subarray of 1's After Deleting One Element
• Longest Substring Without Repeating Characters

Sorting

• 3Sum
• Contains Duplicate
• K Closest Points to Origin
• Majority Element
• Valid Anagram

Stack

• Implement Queue using Stacks
• Valid Parentheses

String

• Add Binary
• Longest Palindrome
• Longest Substring Without Repeating Characters
• Ransom Note
• Valid Anagram
• Valid Palindrome
• Valid Parentheses

Tree

• Balanced Binary Tree
• Binary Tree Level Order Traversal
• Diameter of Binary Tree
• Invert Binary Tree
• Lowest Common Ancestor of a Binary Search Tree
• Maximum Depth of Binary Tree
• Validate Binary Search Tree

Two Pointers

• 3Sum
• Linked List Cycle
• Middle of the Linked List
• Valid Palindrome

Union Find

• Number of Islands

problem

• 01 Matrix
• 3Sum
• Add Binary
• Balanced Binary Tree
• Best Time to Buy and Sell Stock
• Binary Search
• Binary Tree Level Order Traversal
• Climbing Stairs
• Coin Change
• Contains Duplicate
• Diameter of Binary Tree
• First Bad Version
• Flood Fill
• Implement Queue using Stacks
• Insert Interval
• Invert Binary Tree
• K Closest Points to Origin
• Linked List Cycle
• Longest Palindrome
• Longest Subarray of 1's After Deleting One Element
• Longest Substring Without Repeating Characters
• Lowest Common Ancestor of a Binary Search Tree
• Majority Element
• Max Consecutive Ones
• Maximum Depth of Binary Tree
• Maximum Subarray
• Merge Two Sorted Lists
• Middle of the Linked List
• Number of Islands
• Ransom Note
• Reverse Linked List
• Rotting Oranges
• Two Sum
• Valid Anagram
• Valid Palindrome
• Valid Parentheses
• Validate Binary Search Tree

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Metadata

• git_revision_date_localized: 5 июля 2025 г.
• git_revision_date_localized_hash: f6ac458ea7f3485fe36c4b8c8f7c610ae2d995e7
• git_revision_date_localized_tag:
• git_revision_date_localized_raw_date: 5 июля 2025 г.
• git_revision_date_localized_raw_datetime: 5 июля 2025 г. 19:32:08
• git_revision_date_localized_raw_datetime-timezone: 5 июля 2025 г. 19:32:08 UTC
• git_revision_date_localized_raw_iso_date: 2025-07-05
• git_revision_date_localized_raw_iso_datetime: 2025-07-05 19:32:08
• git_revision_date_localized_raw_timeago:
• git_revision_date_localized_raw_custom: 05. июля 2025
• git_site_revision_date_localized_hash: f6ac458ea7f3485fe36c4b8c8f7c610ae2d995e7
• git_site_revision_date_localized_tag:
• git_site_revision_date_localized: 5 июля 2025 г.
• git_site_revision_date_localized_raw_date: 5 июля 2025 г.
• git_site_revision_date_localized_raw_datetime: 5 июля 2025 г. 19:32:08
• git_site_revision_date_localized_raw_datetime-timezone: 5 июля 2025 г. 19:32:08 UTC
• git_site_revision_date_localized_raw_iso_date: 2025-07-05
• git_site_revision_date_localized_raw_iso_datetime: 2025-07-05 19:32:08
• git_site_revision_date_localized_raw_timeago:
• git_site_revision_date_localized_raw_custom: 05. июля 2025