湛蓝与蔚蓝
Hash Table
标题
列 1
列 2
列 3
列 4
列 5
列 6
列 7
#
Title
Solution
Time
Space
Difficulty
Tag
Note
0001
Two Sum
C++ Python
O(n)
O(n)
Easy
0003
Longest Substring Without Repeating Characters
C++ Python
O(n)
O(1)
Medium
0030
Substring with Concatenation of All Words
C++ Python
O((m + n) * k)
O(n * k)
Hard
0036
Valid Sudoku
C++ Python
O(9^2)
O(9)
Easy
0049
Group Anagrams
C++ Python
O(n * glogg)
O(n)
Medium
0076
Minimum Window Substring
C++ Python
O(n)
O(k)
Hard
0149
Max Points on a Line
C++ Python
O(n^2)
O(n)
Hard
0159
Longest Substring with At Most Two Distinct Characters
C++ Python
O(n)
O(1)
Hard
🔒
0170
Two Sum III - Data structure design
C++ Python
O(n)
O(n)
Easy
🔒
0187
Repeated DNA Sequences
Python
O(n)
O(n)
Medium
0202
Happy Number
C++ Python
O(k)
O(k)
Easy
0204
Count Primes
C++ Python
O(n)
O(n)
Easy
Linear Sieve of Eratosthenes
0205
Isomorphic Strings
C++ Python
O(n)
O(1)
Easy
0217
Contains Duplicate
C++ Python
O(n)
O(n)
Easy
0219
Contains Duplicate II
C++ Python
O(n)
O(n)
Easy
0244
Shortest Word Distance II
C++ Python
ctor: O(n), lookup: O(a + b)
O(n)
Medium
🔒
0246
Strobogrammatic Number
C++ Python
O(n)
O(1)
Easy
🔒
0249
Group Shifted Strings
C++ Python
O(nlogn)
O(n)
Easy
🔒
0266
Palindrome Permutation
C++ Python
O(n)
O(1)
Easy
🔒
0288
Unique Word Abbreviation
C++ Python
ctor: O(n), lookup: O(1)
O(k)
Easy
🔒
0290
Word Pattern
C++ Python
O(n)
O(c)
Easy
variant of Isomorphic Strings
0299
Bulls and Cows
C++ Python
O(n)
O(1)
Easy
0305
Number of Islands II
C++ Python
O(k)
O(k)
Hard
LintCode, 🔒
Union Find
0314
Binary Tree Vertical Order Traversal
C++ Python
O(n)
O(n)
Medium
🔒
BFS
0323
Number of Connected Components in an Undirected Graph
C++ Python
O(n)
O(n)
Medium
🔒
Union Find
0325
Maximum Size Subarray Sum Equals k
C++ Python
O(n)
O(n)
Medium
🔒
0336
Palindrome Pairs
C++ Python
O(n * k^2)
O(n * k)
Hard
0340
Longest Substring with At Most K Distinct Characters
C++ Python
O(n)
O(1)
Hard
🔒
0356
Line Reflection
C++ Python
O(n)
O(n)
Medium
🔒
Hash, Two Pointers
0387
First Unique Character in a String
C++ Python
O(n)
O(n)
Easy
0388
Longest Absolute File Path
C++ Python
O(n)
O(d)
Medium
Stack
0409
Longest Palindrome
C++ Python
O(n)
O(1)
Easy
0438
Find All Anagrams in a String
C++ Python
O(n)
O(1)
Easy
0447
Number of Boomerangs
C++ Python
O(n^2)
O(n)
Easy
0454
4Sum II
C++ Python
O(n^2)
O(n^2)
Medium
0473
Matchsticks to Square
C++ Python
O(n * s * 2^n)
O(n * (2^n + s))
Medium
0523
Continuous Subarray Sum
C++ Python
O(n)
O(k)
Medium
0532
K-diff Pairs in an Array
C++ Python
O(n)
O(n)
Easy
0554
Brick Wall
C++ Python
O(n)
O(m)
Medium
0560
Subarray Sum Equals K
C++ Python
O(n)
O(n)
Medium
0561
Array Partition I
C++ Python
O(r)
O(r)
Easy
0575
Distribute Candies
C++ Python
O(n)
O(n)
Easy
0594
Longest Harmonious Subsequence
C++ Python
O(n)
O(n)
Easy
0599
Minimum Index Sum of Two Lists
C++ Python
O((m + n) * l)
O(m * l)
Easy
0609
Find Duplicate File in System
C++ Python
O(n * l)
O(n * l)
Medium
0721
Accounts Merge
C++ Python
O(nlogn)
O(n)
Medium
Union Find
0734
Sentence Similarity
C++ Python
O(n + p)
O(p)
Easy
0737
Sentence Similarity II
C++ Python
O(n + p)
O(p)
Medium
Union Find
0748
Shortest Completing Word
C++ Python
O(n)
O(1)
Easy
0760
Find Anagram Mappings
C++ Python
O(n)
O(n)
Easy
0771
Jewels and Stones
C++ Python
O(m + n)
O(n)
Easy
0811
Subdomain Visit Count
C++ Python
O(n)
O(n)
Easy
0822
Card Flipping Game
C++ Python
O(n)
O(n)
Medium
0825
Friends Of Appropriate Ages
C++ Python
O(a^2 + n)
O(a)
Medium
0869
Reordered Power of 2
C++ Python
O(1)
O(1)
Medium
0873
Length of Longest Fibonacci Subsequence
C++ Python
O(n^2)
O(n)
Medium
0957
Prison Cells After N Days
C++ Python
O(1)
O(1)
Medium
0966
Vowel Spellchecker
C++ Python
O(n)
O(w)
Medium
0974
Subarray Sums Divisible by K
C++ Python
O(n)
O(k)
Medium
variant of Subarray Sum Equals K
0982
Triples with Bitwise AND Equal To Zero
C++ Python
O(nlogn)
O(n)
Hard
Math, Fast Wavelet Transform (FWT)
Loading...
ran2323
ran2323
忘掉名字吧
Latest posts
SFT + DPO 塔罗解读
SFT + DPO 塔罗解读
2025-4-14
Backtracking
Backtracking
2025-4-14
Leetcode 0001-1000 分组
Leetcode 0001-1000 分组
2025-4-14
mcp 记录(1)
mcp 记录(1)
2025-4-14
DPO 相关
DPO 相关
2025-3-29
今日paper(3/25) - MAGPIE
今日paper(3/25) - MAGPIE
2025-3-27
Announcement
 
 
 
 
暂时没有新的内容