Roman Numerals

NumPuzz I

字符串

NumPuzz II

3, 2, 1, 0

Metal Powers

Parallel Missions

Save Setu

Trapezium Drawing

Scarecrow

Help Dexter

Speed Zones

Multi Round Matches

Kisu Pari Na - 1

Disable the Wand

A Dangerous Maze (II)

A Typical Homework (a.k.a 师兄帮帮忙)

模拟

Big Decimal Calculator

高精度 · 级数

Calculating Yuan Fen

模拟 · 字符串

Digit Patterns

字符串 · 有限状态自动机

Excessive Space Remover

字符串

公式编辑器 Formula Editor

模拟

Game of 999

搜索 · 广度优先搜索 BFS · 深度优先搜索 DFS · 剪枝 · 记忆化搜索 · 状态合并

Heap Manager

线段树 · 平衡树

Item-Based Recommendation

模拟

(Jiandan) Mua (I) - Lexical Analyzer

模拟

(Kengdie) Mua (II) - Expression Evaluator

模拟

(Last) Mua(III) - Full Interpreter

模拟

Answering Queries on a Tree

Best Friend

Counting Triangles

Donkey of the Sultan

Enemy at the Gates

Finding Magic Triplets

Grand Wedding

Happy 10/9 Day

Inked Carpets

租车 Rent a Car

Infinite Stable Integer

Consistent Verdicts

Rip Van Winkle's Code

Kisu Pari Na 2

Farey Polygon

February 29

Save the Trees

Superb Sequence

Forwarding Emails

图论 · 深度优先搜索 DFS

Quad

Bits and Pieces

Happy 12

How Many... in 3D!

状压 DP