Searching 2

• LeetCode-494 Target Sum 2024/06/04
• LeetCode-95 Unique Binary Search Trees II 2024/03/28

Constructive Algorithm 3

• Codeforces-1541A Pretty Permutations 2024/01/14
• Codeforces-1529A Eshag Loves Big Arrays 2024/01/13
• LeetCode-2870 Minimum Number of Operations to Make Array Empty 2024/01/05

Ad Hoc 4

• LeetCode-41 First Missing Positive 2024/05/29
• LeetCode-287 Find the Duplicate Number 2024/05/28
• HDU-5538 House Building 2023/12/31
• LeetCode-463 Island Perimeter 2023/12/30

Computational Geometry 1

• LeetCode-149 Max Points on a Line 2023/11/03

Math 2

• Codeforces-1690A Print a Pedestal (Codeforces logo?) 2023/11/29
• LeetCode-1131 Maximum of Absolute Value Expression 2023/09/27

Sorting 1

• LeetCode-436 Find Right Interval 2023/03/13

String 7

• LeetCode-10 Regular Expression Matching 2024/06/02
• LeetCode-736 Parse Lisp Expression 2024/06/01
• LeetCode-722 Remove Comments 2024/05/31
• LeetCode-224 Basic Calculator 2024/05/30
• LeetCode-5 Longest Palindromic Substring 2024/03/28
• LeetCode-1673 Find the Most Competitive Subsequence 2023/03/15
• LeetCode-316 Remove Duplicate Letters 2022/07/07

Binary Search 2

• LeetCode-2397 Maximum Rows Covered by Columns 2024/01/04
• LeetCode-719 Find K-th Smallest Pair Distance 2022/06/10

Greedy 13

• LeetCode-2735 Collecting Chocolates 2024/01/02
• LeetCode-1599 Maximum Profit of Operating a Centennial Wheel 2024/01/01
• LeetCode-632 Smallest Range Covering Elements from K Lists 2023/10/26
• LeetCode-621 Task Scheduler 2023/10/25
• LeetCode-646 Maximum Length of Pair Chain 2023/09/28
• 51NOD-1364 最大字典序排列 2023/03/19
• LeetCode-122 Best Time to Buy and Sell Stock II 2023/03/15
• POJ-1456 Supermarket 2023/03/04
• LeetCode-435 Non-overlapping Intervals 2022/07/07
• LeetCode-1363 Largest Multiple of Three 2022/06/09
• LeetCode-134 Gas Station 2022/03/31
• LeetCode-630 Course Schedule III 2022/03/17
• LeetCode-502 IPO 2022/03/11

Dynamic Programming 17

• LeetCode-132 Palindrome Partitioning II 2024/04/03
• LeetCode-687 Longest Univalue Path 2024/03/28
• LeetCode-124 Binary Tree Maximum Path Sum 2024/03/28
• LeetCode-935 Knight Dialer 2023/11/28
• LeetCode-638 Shopping Offers 2023/11/03
• LeetCode-678 Valid Parenthesis String 2023/11/02
• LeetCode-446 Arithmetic Slices II - Subsequence 2023/11/01
• LeetCode-312 Burst Balloons 2023/11/01
• LeetCode-629 K Inverse Pairs Array 2023/09/28
• LeetCode-526 Beautiful Arrangement 2023/09/28
• LeetCode-354 Russian Doll Envelopes 2023/09/26
• LeetCode-1235 Maximum Profit in Job Scheduling 2023/03/21
• LeetCode-698 Partition to K Equal Sum Subsets 2023/03/13
• LeetCode-688 Knight Probability in Chessboard 2023/03/13
• LeetCode-664 Strange Printer 2022/03/16
• LeetCode-546 Remove Boxes 2022/03/16
• LeetCode-600 Non-negative Integers without Consecutive Ones 2022/02/16

Data Structure 10

• LeetCode-739 Daily Temperatures 2024/03/27
• LeetCode-907 Sum of Subarray Minimums 2023/11/27
• LeetCode-456 132 Pattern 2023/03/21
• LeetCode-315 Count of Smaller Numbers After Self 2023/03/19
• LeetCode-373 Find K Pairs with Smallest Sums 2022/06/17
• LeetCode-480 Sliding Window Median 2022/03/10
• LeetCode-352 Data Stream as Disjoint Intervals 2022/03/05
• LeetCode-239 Sliding Window Maximum 2022/03/02
• LeetCode-218 The Skyline Problem 2021/07/13
• LeetCode-525 Contiguous Array 2021/03/08

Bit Manipulation 4

• LeetCode-201 Bitwise AND of Numbers Range 2022/04/01
• LeetCode-260 Single Number III 2021/03/08
• LeetCode-477 Total Hamming Distance 2020/01/18
• LeetCode-421 Maximum XOR of Two Numbers in an Array 2020/01/18