Hsing-Yu
Posts
Notes and write-ups — reinforcement learning, engineering, and research.
2026·01
1458. Max Dot Product of Two Subsequences
Coding
2026·01
1339. Maximum Product of Splitted Binary Tree
Coding
2026·01
1975. Maximum Matrix Sum
Coding
2026·01
1390. Four Divisors
Coding
2026·01
1411. Number of Ways to Paint N 3 Grid
Coding
2026·01
961. N-Repeated Element in Size 2N Array
Coding
2026·01
66. Plus One
Coding
2025·09
Ubuntu 套件安裝
Computer Science
2025·08
3000. Maximum Area of Longest Diagonal Rectangle
Coding
2025·08
498. Diagonal Traverse
Coding
2025·08
Job Scheduling & Resource Management System
Computer Science
2025·03
AWS - NORMAL: NovaTech - Stateful web server
Computer Science
2025·03
Tmux
Computer Science
2025·02
Kubeadm create k8s cluster
Computer Science
2024·11
3011. Find if Array Can Be Sorted
Coding
2024·09
LLM 介紹
Computer Science
2024·09
GitLab CI/CD 實作
Computer Science
2024·09
Fine-tuning 實作
Computer Science
2024·09
Fine-tuning 介紹
Computer Science
2024·07
Ubuntu 各種設定
Computer Science
2024·06
1002. Find Common Characters
Coding
2024·06
409. Longest Palindrome
Coding
2024·06
2486. Append Characters to String to Make Subsequence
Coding
2024·06
344. Reverse String
Coding
2024·06
3110. Score of a String
Coding
2024·05
260. Single Number III
Coding
2024·05
1442. Count Triplets That Can Form Two Arrays of Equal XOR
Coding
2024·05
1404. Number of Steps to Reduce a Number in Binary Representation to One
Coding
2024·05
1208. Get Equal Substrings Within Budget
Coding
2024·05
1608. Special Array With X Elements Greater Than or Equal X
Coding
2024·05
Anaconda
Computer Science
2024·05
Python virtual env
Computer Science
2024·05
1863. Sum of All Subset XOR Totals
Coding
2024·05
Ubuntu 安裝 CUDA 環境
Computer Science
2024·05
979. Distribute Coins in Binary Tree
Coding
2024·05
2331. Evaluate Boolean Binary Tree
Coding
2024·05
灌作業系統
Computer Science
2024·05
861. Score After Flipping Matrix
Coding
2024·05
506. Relative Ranks
Coding
2024·05
2816. Double a Number Represented as a Linked List
Coding
2024·05
2487. Remove Nodes From Linked List
Coding
2024·05
165. Compare Version Numbers
Coding
2024·05
2441. Largest Positive Integer That Exists With Its Negative
Coding
2024·05
2000. Reverse Prefix of Word
Coding
2024·04
2997. Minimum Number of Operations to Make Array XOR Equal to K
Coding
2024·04
2370. Longest Ideal Subsequence
Coding
2024·04
1137. N-th Tribonacci Number
Coding
2024·04
752. Open the Lock
Coding
2024·04
402. Remove K Digits
Coding
2024·04
950. Reveal Cards In Increasing Order
Coding
2024·04
1700. Number of Students Unable to Eat Lunch
Coding
2024·04
58. Length of Last Word
Coding
2024·03
41. First Missing Positive
Coding
2024·03
442. Find All Duplicates in an Array
Coding
2024·03
143. Reorder List
Coding
2024·03
234. Palindrome Linked List
Coding
2024·03
206. Reverse Linked List
Coding
2024·03
1669. Merge In Between Linked Lists
Coding
2024·03
621. Task Scheduler
Coding
2024·03
452. Minimum Number of Arrows to Burst Balloons
Coding
2024·03
57. Insert Interval
Coding
2024·03
525. Contiguous Array
Coding
2024·03
238. Product of Array Except Self
Coding
2024·03
930. Binary Subarrays With Sum
Coding
2024·03
1171. Remove Zero Sum Consecutive Nodes from Linked List
Coding
2024·03
791. Custom Sort String
Coding
2024·03
349. Intersection of Two Arrays
Coding
2024·03
2540. Minimum Common Value
Coding
2024·03
Makefile 語法
Computer Science
2024·03
3005. Count Elements With Maximum Frequency
Coding
2024·03
876. Middle of the Linked List
Coding
2024·03
948. Bag of Tokens
Coding
2024·02
787. Cheapest Flights Within K Stops
Coding
2024·02
997. Find the Town Judge
Coding
2024·02
201. Bitwise AND of Numbers Range
Coding
2024·02
268. Missing Number
Coding
2024·02
231. Power of Two
Coding
2024·02
2149. Rearrange Array Elements by Sign
Coding
2024·02
2108. Find First Palindromic String in the Array
Coding
2024·02
169. Majority Element
Coding
2024·02
279. Perfect Squares
Coding
2024·02
451. Sort Characters By Frequency
Coding
2024·02
387. First Unique Character in a String
Coding
2024·02
1043. Partition Array for Maximum Sum
Coding
2024·02
1291. Sequential Digits
Coding
2024·02
2966. Divide Array Into Arrays With Max Difference
Coding
2024·01
739. Daily Temperatures
Coding
2024·01
150. Evaluate Reverse Polish Notation
Coding
2024·01
232. Implement Queue using Stacks
Coding
2024·01
629. K Inverse Pairs Array
Coding
2024·01
576. Out of Boundary Paths
Coding
2024·01
1143. Longest Common Subsequence
Coding
2024·01
1457. Pseudo-Palindromic Paths in a Binary Tree
Coding
2024·01
1239. Maximum Length of a Concatenated String with Unique Characters
Coding
2024·01
645. Set Mismatch
Coding
2024·01
198. House Robber
Coding
2024·01
907. Sum of Subarray Minimums
Coding
2024·01
931. Minimum Falling Path Sum
Coding
2024·01
70. Climbing Stairs
Coding
2024·01
380. Insert Delete GetRandom O(1)
Coding
2024·01
2225. Find Players With Zero or One Losses
Coding
2024·01
1657. Determine if Two Strings Are Close
Coding
2024·01
1347. Minimum Number of Steps to Make Two Strings Anagram
Coding
2024·01
AI 基礎介紹
Computer Science
2024·01
1704. Determine if String Halves Are Alike
Coding
2024·01
麻將 AI 對局
Computer Science
2024·01
1026. Maximum Difference Between Node and Ancestor
Coding
2023·12
1578. Minimum Time to Make Rope Colorful
Coding
2023·12
1758. Minimum Changes To Make Alternating Binary String
Coding
2023·12
2706. Buy Two Chocolates
Coding
2023·12
Practise Floyd-Warshall 單機版程式 vs. 平行版程式
Computer Science
2023·12
1913. Maximum Product Difference Between Two Pairs
Coding
2023·12
2353. Design a Food Rating System
Coding
2023·12
242. Valid Anagram
Coding
2023·12
1436. Destination City
Coding
2023·12
熟悉 Linux
Computer Science
2023·12
2482. Difference Between Ones and Zeros in Row and Column
Coding
2023·12
Practise 找質數 - 單機版程式 vs. 平行版程式
Computer Science
2023·12
Practise 電路圖 - 單機版程式 vs. 平行版程式
Computer Science
2023·12
安裝 Microsoft MPI with vscode in Windows
Computer Science
2023·12
What is MPI?
Computer Science
2023·11
Create Svelte Project
Computer Science
2023·10
342. Power of Four
Coding
2023·10
介紹 Svelte
Computer Science
2023·10
1425. Constrained Subsequence Sum
Coding
2023·10
341. Flatten Nested List Iterator
Coding
2023·10
What is watchtower?
Computer Science
2023·10
844. Backspace String Compare
Coding
2023·10
746. Min Cost Climbing Stairs
Coding
2023·10
1095. Find in Mountain Array
Coding
2023·10
34. Find First and Last Position of Element in Sorted Array
Coding
2023·10
343. Integer Break
Coding
2023·10
229. Majority Element II
Coding
2023·10
706. Design HashMap
Coding
2023·10
1512. Number of Good Pairs
Coding
2023·10
2038. Remove Colored Pieces if Both Neighbors are the Same Color
Coding
2023·10
557. Reverse Words in a String III
Coding
2023·09
905. Sort Array By Parity
Coding
2023·09
880. Decoded String at Index
Coding
2023·09
316. Remove Duplicate Letters
Coding
2023·09
389. Find the Difference
Coding
2023·09
1048. Longest String Chain
Coding
2023·09
4. Median of Two Sorted Arrays
Coding
2023·09
1658. Minimum Operations to Reduce X to Zero
Coding
2023·09
287. Find the Duplicate Number
Coding
2023·09
1337. The K Weakest Rows in a Matrix
Coding
2023·09
847. Shortest Path Visiting All Nodes
Coding
2023·09
1584. Min Cost to Connect All Points
Coding
2023·09
1282. Group the People Given the Group Size They Belong To
Coding
2023·08
403. Frog Jump
Coding
2023·08
542. 01 Matrix
Coding
2023·08
239. Sliding Window Maximum
Coding
2023·08
86. Partition List
Coding
2023·08
215. Kth Largest Element in an Array
Coding
2023·08
C Program — Structs, Scope & Algorithm
Computer Science
2023·08
2369. Check if There is a Valid Partition For The Array
Coding
2023·08
C Program — Functions & Pointers
Computer Science
2023·08
C Program — Arrays & Strings
Computer Science
2023·08
C Program — Control Flow
Computer Science
2023·08
PHP 串接資料庫
Computer Science
2023·08
C Program — Basics
Computer Science
2023·08
PHP 基本語法
Computer Science
2023·08
PHP infomation
Computer Science
2023·07
Java spring boot 串接資料庫
Computer Science
2023·07
Java spring boot 框架概念
Computer Science
2023·07
111. Minimum Depth of Binary Tree
Coding
2023·07
2024. Maximize the Confusion of an Exam
Coding
2023·07
1493. Longest Subarray of 1's After Deleting One Element
Coding
2023·07
上海實習 GoGo
2023·07
137. Single Number II
Coding
2023·07
859. Buddy Strings
Coding
2023·06
Vue 指令
Computer Science
2023·06
Vue 基本介紹
Computer Science
2023·06
創建 Vue.js Project
Computer Science
2023·06
什麼是Vue?
Computer Science
2023·06
1514. Path with Maximum Probability
Coding
2023·06
373. Find K Pairs with Smallest Sums
Coding
2023·06
2462. Total Cost to Hire K Workers
Coding
2023·06
956. Tallest Billboard
Coding
2023·06
1027. Longest Arithmetic Subsequence
Coding
2023·06
714. Best Time to Buy and Sell Stock with Transaction Fee
Coding
2023·06
2448. Minimum Cost to Make Array Equal
Coding
2023·06
What is CI/CD?
Computer Science
2023·06
What is DevOps?
Computer Science
2023·06
2090. K Radius Subarray Averages
Coding
2023·06
1732. Find the Highest Altitude
Coding
2023·06
介紹 Java Script Boot
Computer Science
2023·05
What is Framework?
Computer Science
2023·05
2627. Debounce
Coding
2023·05
785. Is Graph Bipartite?
Coding
2023·05
Git 進階指令
Computer Science
2023·05
Work Flow
Computer Science
2023·05
Git Branch
Computer Science
2023·05
Git commit specification
Computer Science
2023·05
Git 基本指令與觀念
Computer Science
2023·05
Git 安裝
Computer Science
2023·05
Git Information
Computer Science
2023·05
2622. Cache With Time Limit
Coding
2023·05
1557. Minimum Number of Vertices to Reach All Nodes
Coding
2023·05
2636. Promise Pool
Coding
2023·05
2130. Maximum Twin Sum of a Linked List
Coding
2023·05
Docker Practise - 2
Computer Science
2023·05
Docker Practise - 1
Computer Science
2023·05
Docker Compose
Computer Science
2023·05
Dockerfile
Computer Science
2023·05
基礎指令
Computer Science
2023·05
Docker-安裝
Computer Science
2023·05
虛擬化技術
Computer Science
2023·05
Docker Information
Computer Science
2023·05
2637. Promise Time Limit
Coding
2023·05
24. Swap Nodes in Pairs
Coding
2023·05
2621. Sleep
Coding
2023·05
1721. Swapping Nodes in a Linked List
Coding
2023·05
2666. Allow One Function Call
Coding
2023·05
2140. Solving Questions With Brainpower
Coding
2023·05
2629. Function Composition
Coding
2023·05
1035. Uncrossed Lines
Coding
2023·05
2626. Array Reduce Transformation
Coding
2023·05
59. Spiral Matrix II
Coding
2023·05
2634. Filter Elements from Array
Coding
2023·05
54. Spiral Matrix
Coding
2023·05
2635. Apply Transform Over Each Element in Array
Coding
2023·05
1572. Matrix Diagonal Sum
Coding
2023·05
2665. Counter II
Coding
2023·05
1964. Find the Longest Valid Obstacle Course at Each Position
Coding
2023·05
1498. Number of Subsequences That Satisfy the Given Sum Condition
Coding
2023·05
2620. Counter
Coding
2023·05
1456. Maximum Number of Vowels in a Substring of Given Length
Coding
2023·05
2667. Create Hello World Function
Coding
2023·05
649. Dota2 Senate
Coding
2023·05
2215. Find the Difference of Two Arrays
Coding
2023·05
1822. Sign of the Product of an Array
Coding
2023·05
1491. Average Salary Excluding the Minimum and Maximum Salary
Coding
2023·04
1579. Remove Max Number of Edges to Keep Graph Fully Traversable
Coding
2023·04
1697. Checking Existence of Edge Length Limited Paths
Coding
2023·04
839. Similar String Groups
Coding
2023·04
319. Bulb Switcher
Coding
2023·04
258. Add Digits
Coding
2023·04
2336. Smallest Number in Infinite Set
Coding
2023·04
1046. Last Stone Weight
Coding
2023·04
879. Profitable Schemes
Coding
2023·04
662. Maximum Width of Binary Tree
Coding
2023·04
1372. Longest ZigZag Path in a Binary Tree
Coding
2023·04
1431. Kids With the Greatest Number of Candies
Coding
2023·04
2218. Maximum Value of K Coins From Piles
Coding
2023·04
516. Longest Palindromic Subsequence
Coding
2023·04
946. Validate Stack Sequences
Coding
2023·04
71. Simplify Path
Coding
2023·04
2390. Removing Stars From a String
Coding
2023·04
20. Valid Parentheses
Coding
2023·04
1857. Largest Color Value in a Directed Graph
Coding
2023·04
133. Clone Graph
Coding
2023·04
1020. Number of Enclaves
Coding
2023·04
1254. Number of Closed Islands
Coding
2023·04
2439. Minimize Maximum of Array
Coding
2023·04
2405. Optimal Partition of String
Coding
2023·04
881. Boats to Save People
Coding