標籤索引¶

這是本專案所有題目的標籤分類。

/Medium¶

• 143. Reorder List

143. Reorder List¶

• 143. Reorder List

33. Search in Rotated Sorted Array¶

• 33. Search in Rotated Sorted Array

3Sum¶

• 0015. 3Sum

A1B2C3¶

• A1B2C3: Two Go Routine Print A1B2C3....Z26

Add Two Numbers¶

• 0002.Add Two Numbers

Adobe¶

• 0005. Longest Palindromic Substring
• 0011.Container With Most Water
• 0153.Find-Minimum-in-Rotated-Sorted-Array
• 128. Longest Consecutive Sequence
• 143. Reorder List

Algorithm¶

• A1B2C3: Two Go Routine Print A1B2C3....Z26

Algorithms¶

• Find Target Last Index
• Intersection of Two Sorted Arrays using In Place Approach
• Search Graph in Golang

Amazon¶

• 0002.Add Two Numbers
• 0005. Longest Palindromic Substring
• 0011.Container With Most Water
• 0019. Remove Nth Node From End of List
• 0153.Find-Minimum-in-Rotated-Sorted-Array
• 128. Longest Consecutive Sequence
• 138. Copy List with Random Pointer
• 143. Reorder List
• 33. Search in Rotated Sorted Array
• 74. Search a 2D Matrix

Apple¶

• 0002.Add Two Numbers
• 33. Search in Rotated Sorted Array
• 412. Fizz Buzz

Array¶

• 0003.Longest Substring Without Repeating Characters
• 0011.Container With Most Water
• 0015. 3Sum
• 0027.Remove Element
• 0034. Find First and Last Position of Element in Sorted Array
• 0035.Search Insert Position
• 0059.Spiral Matrix II
• 0088.Merge Sorted Array
• 0167.Two Sum II Input Array Is Sorted
• 0217.Contains-Duplicate
• 105. Construct Binary Tree from Preorder and Inorder Traversal
• 128. Longest Consecutive Sequence
• 238. Product of Array Except Self
• 33. Search in Rotated Sorted Array
• 380. Insert Delete GetRandom O(1)
• 381.Insert Delete GetRandom O(1) Duplicates allowed
• 74. Search a 2D Matrix
• 875. Koko Eating Bananas
• Cyclic Rotation
• Solution 1.Two-Sum

Array & String¶

• 0695.Max Area of Island

BFS¶

• 0695.Max Area of Island
• 0733.Flood Fill
• 226. Invert Binary Tree
• Search Graph in Golang

Backtracking¶

• 0046.Permutations

Balanced Binary Tree¶

• 110. Balanced Binary Tree

Bank Requests¶

• Bank Requests

Best Time to Buy and Sell Stock¶

• 0121.Best Time to Buy and Sell Stock

Binary Search¶

• 0034. Find First and Last Position of Element in Sorted Array
• 0167.Two Sum II Input Array Is Sorted
• 0300.Longest Increasing Subsequence
• 0354. Russian Doll Envelope
• 0704.Binary Search
• 0981.Time Based Key-Value Store
• 33. Search in Rotated Sorted Array
• 74. Search a 2D Matrix
• 875. Koko Eating Bananas

Binary Tree¶

• 105. Construct Binary Tree from Preorder and Inorder Traversal

Bit Manipulation¶

• 0693.Binary Number with Alternating Bits

Bitwise Manipulation¶

• Binary Gap

Blind75¶

• 0121.Best Time to Buy and Sell Stock
• 0217.Contains-Duplicate
• 238. Product of Array Except Self

Bloomberg¶

• 0002.Add Two Numbers
• 0019. Remove Nth Node From End of List
• 138. Copy List with Random Pointer
• 143. Reorder List
• 74. Search a 2D Matrix

Breadth First Search¶

• 0310.Minimum Height Trees
• 0752.Open the Lock

Climbing Stairs¶

• 0070.Climbing Stairs

CodeSignal¶

• Bank Requests

Codility¶

• Binary Gap
• Cyclic Rotation

Coin Change¶

• 0322.Coin Change

Concurrency¶

• 1195. Fizz Buzz Multithreaded

Construct Binary Tree from Preorder and Inorder Traversal¶

• 105. Construct Binary Tree from Preorder and Inorder Traversal

Container With Most Water¶

• 0011.Container With Most Water

Contains Duplicate¶

• 0217.Contains-Duplicate

Copy List with Random Pointer¶

• 138. Copy List with Random Pointer

Counting¶

• 3223.Minimum-Length-of-String-After-Operations

DFS¶

• 0543. Diameter of Binary Tree
• 0695.Max Area of Island
• 0733.Flood Fill
• 110. Balanced Binary Tree

DP¶

• 0005. Longest Palindromic Substring
• 0070.Climbing Stairs
• 0121.Best Time to Buy and Sell Stock

Design¶

• 0981.Time Based Key-Value Store

Diameter of Binary Tree¶

• 0543. Diameter of Binary Tree

Divide and Conquer¶

• 105. Construct Binary Tree from Preorder and Inorder Traversal

Dynamic Programming¶

• 0010.Regular-Expression-Matching
• 0072. Edit Distance
• 0300.Longest Increasing Subsequence
• 0322.Coin Change
• 0354. Russian Doll Envelope
• 0509.Fibonacci Number
• 1143.Longest Common Subsequence
• 516. Longest Palindromic Subsequence
• WeightedEditDistance

Easy¶

• 0001.Two Sum
• 0020. Valid Parentheses
• 0027.Remove Element
• 0028. Find the Index of the First Occurrence in a String
• 0035.Search Insert Position
• 0070.Climbing Stairs
• 0088.Merge Sorted Array
• 0104.Maximum Depth of Binary Tree
• 0121.Best Time to Buy and Sell Stock
• 0125. Valid Palindrome
• 0141.Linked List Cycle
• 0203.Remove Linked List Elements
• 0217.Contains-Duplicate
• 0242.Valid-Anagram
• 0283. Move Zeroes
• 0344.Reverse String
• 0409. Longest Palindrome
• 0509.Fibonacci Number
• 0543. Diameter of Binary Tree
• 0703. Kth Largest Element in a Stream
• 0704.Binary Search
• 0721.Accounts Merge
• 0733.Flood Fill
• 0876.Middle of the Linked List
• 100. Same Tree
• 1046. Last Stone Weight
• 110. Balanced Binary Tree
• 206. Reverse Linked List
• 226. Invert Binary Tree
• 412. Fizz Buzz
• 746. Min Cost Climbing Stairs
• Find Target Last Index
• Solution 1.Two-Sum

Easy/Medium/Hard¶

• 0021. Merge Two Sorted Lists
• NUM.LEETCODETITLE

Edit Distance¶

• 0072. Edit Distance

Facebook¶

• 0002.Add Two Numbers
• 0005. Longest Palindromic Substring
• 0011.Container With Most Water
• 0019. Remove Nth Node From End of List
• 0153.Find-Minimum-in-Rotated-Sorted-Array
• 138. Copy List with Random Pointer
• 143. Reorder List
• 33. Search in Rotated Sorted Array
• 412. Fizz Buzz
• 74. Search a 2D Matrix

Find First and Last Position of Element in Sorted Array¶

• 0034. Find First and Last Position of Element in Sorted Array

Find Target Last Index¶

• Find Target Last Index

Find the Index of the First Occurrence in a String¶

• 0028. Find the Index of the First Occurrence in a String

Fizz Buzz¶

• 412. Fizz Buzz

Fizz Buzz Multithreaded¶

• 1195. Fizz Buzz Multithreaded

Flood Fill¶

• 0733.Flood Fill

Go¶

• 0002.Add Two Numbers
• 0003.Longest Substring Without Repeating Characters
• 0005. Longest Palindromic Substring
• 0010.Regular-Expression-Matching
• 0011.Container With Most Water
• 0015. 3Sum
• 0019. Remove Nth Node From End of List
• 0020. Valid Parentheses
• 0021. Merge Two Sorted Lists
• 0028. Find the Index of the First Occurrence in a String
• 0034. Find First and Last Position of Element in Sorted Array
• 0049.Group Anagrams
• 0070.Climbing Stairs
• 0078. Subsets
• 0104.Maximum Depth of Binary Tree
• 0121.Best Time to Buy and Sell Stock
• 0125. Valid Palindrome
• 0153.Find-Minimum-in-Rotated-Sorted-Array
• 0167.Two Sum II Input Array Is Sorted
• 0215. Kth Largest Element in an Array
• 0217.Contains-Duplicate
• 0242.Valid-Anagram
• 0283. Move Zeroes
• 0322.Coin Change
• 0543. Diameter of Binary Tree
• 0695.Max Area of Island
• 0703. Kth Largest Element in a Stream
• 0733.Flood Fill
• 0981.Time Based Key-Value Store
• 100. Same Tree
• 1046. Last Stone Weight
• 105. Construct Binary Tree from Preorder and Inorder Traversal
• 110. Balanced Binary Tree
• 1195. Fizz Buzz Multithreaded
• 128. Longest Consecutive Sequence
• 138. Copy List with Random Pointer
• 143. Reorder List
• 206. Reverse Linked List
• 226. Invert Binary Tree
• 238. Product of Array Except Self
• 3223.Minimum-Length-of-String-After-Operations
• 33. Search in Rotated Sorted Array
• 347. Top K Frequent Elements
• 380. Insert Delete GetRandom O(1)
• 381.Insert Delete GetRandom O(1) Duplicates allowed
• 412. Fizz Buzz
• 74. Search a 2D Matrix
• 746. Min Cost Climbing Stairs
• 875. Koko Eating Bananas
• Bank Requests
• Binary Gap
• Cyclic Rotation
• Find Target Last Index
• Golang: container/heap
• NUM.LEETCODETITLE
• Solution 1.Two-Sum

Golang¶

• 0072. Edit Distance
• A1B2C3: Two Go Routine Print A1B2C3....Z26
• Intersection of Two Sorted Arrays using In Place Approach
• Search Graph in Golang
• WeightedEditDistance

Goldman Sachs¶

• 0153.Find-Minimum-in-Rotated-Sorted-Array

Google¶

• 0005. Longest Palindromic Substring
• 0011.Container With Most Water
• 0019. Remove Nth Node From End of List
• 128. Longest Consecutive Sequence
• 138. Copy List with Random Pointer

Greedy¶

• 0011.Container With Most Water

Group Anagrams¶

• 0049.Group Anagrams

Hard¶

• 0010.Regular-Expression-Matching
• 0072. Edit Distance
• 0354. Russian Doll Envelope
• 381.Insert Delete GetRandom O(1) Duplicates allowed

Hash¶

• 380. Insert Delete GetRandom O(1)
• 381.Insert Delete GetRandom O(1) Duplicates allowed

Hash Table¶

• 0003.Longest Substring Without Repeating Characters
• 0981.Time Based Key-Value Store
• 105. Construct Binary Tree from Preorder and Inorder Traversal
• 128. Longest Consecutive Sequence
• 3223.Minimum-Length-of-String-After-Operations
• Solution 1.Two-Sum

Heap¶

• 0215. Kth Largest Element in an Array
• 0703. Kth Largest Element in a Stream
• 1046. Last Stone Weight

Insert Delete GetRandom O(1)¶

• 380. Insert Delete GetRandom O(1)

Insert Delete GetRandom O(1) Duplicates allowed¶

• 381.Insert Delete GetRandom O(1) Duplicates allowed

Intersection¶

• Intersection of Two Sorted Arrays using In Place Approach

Interview¶

• Find Target Last Index

Invert Binary Tree¶

• 226. Invert Binary Tree

Iterations¶

• Binary Gap

Koko Eating Bananas¶

• 875. Koko Eating Bananas

Kth Largest Element in a Stream¶

• 0703. Kth Largest Element in a Stream

Kth Largest Element in an Array¶

• 0215. Kth Largest Element in an Array

LEETCODETITLE¶

• 0104.Maximum Depth of Binary Tree
• 0153.Find-Minimum-in-Rotated-Sorted-Array
• NUM.LEETCODETITLE

Last Stone Weight¶

• 1046. Last Stone Weight

LeetCode¶

• 0002.Add Two Numbers
• 0003.Longest Substring Without Repeating Characters
• 0005. Longest Palindromic Substring
• 0010.Regular-Expression-Matching
• 0011.Container With Most Water
• 0015. 3Sum
• 0019. Remove Nth Node From End of List
• 0020. Valid Parentheses
• 0021. Merge Two Sorted Lists
• 0028. Find the Index of the First Occurrence in a String
• 0034. Find First and Last Position of Element in Sorted Array
• 0049.Group Anagrams
• 0070.Climbing Stairs
• 0078. Subsets
• 0104.Maximum Depth of Binary Tree
• 0121.Best Time to Buy and Sell Stock
• 0125. Valid Palindrome
• 0153.Find-Minimum-in-Rotated-Sorted-Array
• 0167.Two Sum II Input Array Is Sorted
• 0215. Kth Largest Element in an Array
• 0217.Contains-Duplicate
• 0242.Valid-Anagram
• 0283. Move Zeroes
• 0322.Coin Change
• 0543. Diameter of Binary Tree
• 0695.Max Area of Island
• 0703. Kth Largest Element in a Stream
• 0733.Flood Fill
• 0981.Time Based Key-Value Store
• 100. Same Tree
• 1046. Last Stone Weight
• 105. Construct Binary Tree from Preorder and Inorder Traversal
• 110. Balanced Binary Tree
• 1195. Fizz Buzz Multithreaded
• 128. Longest Consecutive Sequence
• 138. Copy List with Random Pointer
• 143. Reorder List
• 206. Reverse Linked List
• 226. Invert Binary Tree
• 238. Product of Array Except Self
• 3223.Minimum-Length-of-String-After-Operations
• 33. Search in Rotated Sorted Array
• 347. Top K Frequent Elements
• 380. Insert Delete GetRandom O(1)
• 381.Insert Delete GetRandom O(1) Duplicates allowed
• 412. Fizz Buzz
• 74. Search a 2D Matrix
• 746. Min Cost Climbing Stairs
• 875. Koko Eating Bananas
• NUM.LEETCODETITLE
• Solution 1.Two-Sum

Left Bound¶

• Find Target Last Index

Linked List¶

• 0002.Add Two Numbers
• 0019. Remove Nth Node From End of List
• 0141.Linked List Cycle
• 0142.Linked List Cycle II
• 0203.Remove Linked List Elements
• 0876.Middle of the Linked List
• 143. Reorder List

LinkedIn¶

• 33. Search in Rotated Sorted Array

Longest Consecutive Sequence¶

• 128. Longest Consecutive Sequence

Longest Substring Without Repeating Characters¶

• 0003.Longest Substring Without Repeating Characters

Math¶

• 0002.Add Two Numbers

Matrix¶

• 0695.Max Area of Island
• 74. Search a 2D Matrix

Max Area of Island¶

• 0695.Max Area of Island

Medium¶

• 0002.Add Two Numbers
• 0003.Longest Substring Without Repeating Characters
• 0005. Longest Palindromic Substring
• 0011.Container With Most Water
• 0015. 3Sum
• 0019. Remove Nth Node From End of List
• 0034. Find First and Last Position of Element in Sorted Array
• 0046.Permutations
• 0049.Group Anagrams
• 0059.Spiral Matrix II
• 0075.Sort Colors
• 0078. Subsets
• 0094.Binary Tree Inorder Traversal
• 0142.Linked List Cycle II
• 0153.Find-Minimum-in-Rotated-Sorted-Array
• 0167.Two Sum II Input Array Is Sorted
• 0209. Minimum Size Subarray Sum
• 0215. Kth Largest Element in an Array
• 0300.Longest Increasing Subsequence
• 0310.Minimum Height Trees
• 0322.Coin Change
• 0438.Find All Anagrams in a String
• 0567.Permutation in String
• 0693.Binary Number with Alternating Bits
• 0695.Max Area of Island
• 0752.Open the Lock
• 0981.Time Based Key-Value Store
• 105. Construct Binary Tree from Preorder and Inorder Traversal
• 1143.Longest Common Subsequence
• 1195. Fizz Buzz Multithreaded
• 128. Longest Consecutive Sequence
• 138. Copy List with Random Pointer
• 238. Product of Array Except Self
• 3223.Minimum-Length-of-String-After-Operations
• 33. Search in Rotated Sorted Array
• 347. Top K Frequent Elements
• 380. Insert Delete GetRandom O(1)
• 516. Longest Palindromic Subsequence
• 74. Search a 2D Matrix
• 875. Koko Eating Bananas

Merge Two Sorted Lists¶

• 0021. Merge Two Sorted Lists

Microsoft¶

• 0002.Add Two Numbers
• 0005. Longest Palindromic Substring
• 0011.Container With Most Water
• 0019. Remove Nth Node From End of List
• 0153.Find-Minimum-in-Rotated-Sorted-Array
• 128. Longest Consecutive Sequence
• 138. Copy List with Random Pointer
• 143. Reorder List
• 33. Search in Rotated Sorted Array
• 412. Fizz Buzz
• 74. Search a 2D Matrix

Min Cost Climbing Stairs¶

• 746. Min Cost Climbing Stairs

Move Zeroes¶

• 0283. Move Zeroes

Multiple Pointers¶

• Cyclic Rotation

Painless¶

• Binary Gap
• Cyclic Rotation

Patience Sorting¶

• 0300.Longest Increasing Subsequence

Prefix Sum¶

• 238. Product of Array Except Self

Priority Queue¶

• 0215. Kth Largest Element in an Array
• 0703. Kth Largest Element in a Stream
• 1046. Last Stone Weight

Product of Array Except Self¶

• 238. Product of Array Except Self

Recursion¶

• 0002.Add Two Numbers
• 0010.Regular-Expression-Matching
• 143. Reorder List

Reverse Linked List¶

• 206. Reverse Linked List

Right Bound¶

• Find Target Last Index

Same Tree¶

• 100. Same Tree

Search Graph¶

• Search Graph in Golang

Search a 2D Matrix¶

• 74. Search a 2D Matrix

Slide Windows¶

• 0121.Best Time to Buy and Sell Stock

Sliding Window¶

• 0003.Longest Substring Without Repeating Characters
• 0209. Minimum Size Subarray Sum
• 0438.Find All Anagrams in a String
• 0567.Permutation in String

Sort¶

• 0075.Sort Colors

Sorting¶

• 0015. 3Sum
• 0215. Kth Largest Element in an Array

Spotify¶

• 128. Longest Consecutive Sequence

Stack¶

• 0094.Binary Tree Inorder Traversal
• 143. Reorder List

String¶

• 0003.Longest Substring Without Repeating Characters
• 0010.Regular-Expression-Matching
• 0028. Find the Index of the First Occurrence in a String
• 0409. Longest Palindrome
• 0981.Time Based Key-Value Store
• 3223.Minimum-Length-of-String-After-Operations

String Matching¶

• 0028. Find the Index of the First Occurrence in a String

Subsets¶

• 0078. Subsets

Time Based Key-Value Store¶

• 0981.Time Based Key-Value Store

Top K Frequent Elements¶

• 347. Top K Frequent Elements

Tree¶

• 100. Same Tree
• 105. Construct Binary Tree from Preorder and Inorder Traversal

Two Pointers¶

• 0011.Container With Most Water
• 0015. 3Sum
• 0019. Remove Nth Node From End of List
• 0028. Find the Index of the First Occurrence in a String
• 0141.Linked List Cycle
• 0142.Linked List Cycle II
• 0167.Two Sum II Input Array Is Sorted
• 0344.Reverse String
• 0876.Middle of the Linked List
• 143. Reorder List

Two Sum II Input Array Is Sorted¶

• 0167.Two Sum II Input Array Is Sorted

Union Find¶

• 0721.Accounts Merge
• 128. Longest Consecutive Sequence

Valid Anagram¶

• 0242.Valid-Anagram

Valid Palindrome¶

• 0125. Valid Palindrome

Valid Parentheses¶

• 0020. Valid Parentheses

WeightedEditDistance¶

• WeightedEditDistance

amazon¶

• 0121.Best Time to Buy and Sell Stock

array¶

• 0121.Best Time to Buy and Sell Stock

bloomberg¶

• 0121.Best Time to Buy and Sell Stock

container/heap¶

• Golang: container/heap

facebook¶

• 0121.Best Time to Buy and Sell Stock

heap¶

• 347. Top K Frequent Elements

math¶

• 412. Fizz Buzz

microsoft¶

• 0121.Best Time to Buy and Sell Stock

string¶

• 412. Fizz Buzz

uber¶

• 0121.Best Time to Buy and Sell Stock