• Lumberjack Sequencing
• The heart flu
• $ 10 to Win?
• Financial Management
• Code Number
• Cancer or Scorpio
• Reading a Quadtree
• Calculating IRR
• Neverland
• Area
• Arithmetic
• Battleships
• Binary Calculator
• Binomial Theorem
• Brainfuck
• Checkers
• Coming Home
• Dice
• Divisor Game
• DNA
• DNA II
• Emigration
• Equation
• Extra Spaces
• Galactic Bonding
• Hic-Hac-Hoe
• In The Airport
• LAMAbpo
• Lucky Numbers
• Polygon
• Round Trip
• Sierpinski Carpet
• Switch The Lights
• Tele-loto
• Time Deposit
• Story of Tomisu Ghost
• Fukushima Nuclear Blast
• Hamming Base
• Mad Scientist
• Corrupted Friendship
• Fantasy Cricket
• Weird Advertisement
• A Change in Thermal Unit
• Prime Independence
• Save from Radiation
• Almost Union-Find
• Broken Keyboard (a.k.a. Beiju Text)
• Cake Cutting
• “Dynamic” Inversion
• Easy Problem from Rujia Liu?
• Fast Matrix Operations
• Girls’ Celebration
• Happy Painting!
• I Can Guess the Data Structure! There is a bag-like data structure, supporting two operations:
• Jewel Magic
• K Smallest Sums
• Rujia Liu Loves Wario Land!
• Unlock
• K-Transformed Permutations
• UVa Panel Discussion
• Happy Birthday
• Array Transformer
• Bubble Sort
• Find Solutions Look at the following equation:
• Paint Brush
• Chess board Coloring
• Emotional Bishop
• Avaricious Maryanna
• Boring Homework
• Complete the Set
• Detection of Extraterrestrial
• Entertainment
• Fudan Extracurricular Lives
• Google is Feeling Lucky
• Herbicide
• Imitation
• Juice Extractor
• Doom’s Day Algorithm
• The Election Day
• Universal Elections (or “he did it again!”)
• Ordering T-shirts
• Escher and Tessellations
• Hats
• Wrong Keys
• Radars
• Very Big Perfect Squares
• A Gift from the Setter
• Flying Spaceships
• Help the Winners
• Sum of Four Squares
• The Monkey and the Oiled Bamboo
• Game of CS
• Race
• War Map
• Stable Grid
• Musical Chair
• Batting Practice
• Goldbach’s Cardinality
• Again Lucky Numbers
• BFS (Binary Fibonacci String)