• Tax Calculator
• Strange Summation
• Jewel Transportation
• Dyanmic len(set(a[L:R]))
• Water Gate Management
• Binary Search Tree
• Fun Coloring
• Twin Apparent Primes!!
• Queen Game
• Spelling Suggestion
• Coalescing Continents
• Paths in a Tree
• Consecutive Sums
• Army buddies
• Ball Stacking
• Candy’s Candy
• Diccionário Portuñol
• Electrical Pollution
• File Retrieval
• Garden Fence
• Hedge Mazes
• In Braille
• Jupiter Attacks!
• King’s Poker
• Binary Matrix
• Candles
• Cards
• Game of Connect
• Guards
• Packing for Holiday
• Pair of Touching Circle
• Treasure Hunt
• Truchet Tiling
• As Long as I Learn, I Live
• Number Coding
• Ball Blasting Game
• Central Post Office
• Glimmr in Distress
• Our Fair Contest!
• Grid of Lamps
• The Game
• Span
• Interesting Sequences
• Smallest Polygon
• Alphabet Soup
• Coin Collecting
• Cybercrime Donut Investigation
• Distributing Ballot Boxes
• Game, Set and Match
• Guess the Numbers
• Non-negative Partial Sums
• Peer Review
• Regular Convex Polygon
• Remoteland
• Roman Numerals
• NumPuzz I
• NumPuzz II
• 3, 2, 1, 0
• Metal Powers
• Parallel Missions
• Save Shetu
• 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 Shi Xiong Bang Bang Mang)
• Big Decimal Calculator
• Calculating Yuan Fen
• Digit Patterns
• Excessive Space Remover
• Formula Editor
• Game of 999
• Heap Manager
• Item-Based Recommendation
• (Jiandan) Mua(I) - Lexical Analyzer
• (Kengdie) Mua(II) - Expression Evaluation
• (Last) Mua (III) - Full Interpreter
• 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
• 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