Volume 40 (4,000-4,099)

Problem ID Title Solution by Most Popular Input by
4000 Lazy Susan
4001 Square Painting
4002 The Ultimate Password
4003 Plagiarism Detection
4004 Space Beacon
4005 Ig-Nobel Prize
4006 Remedial Forecast
4007 Counting Squares
4008 Last Digit
4009 Decode Messages
4010 Geophysics Prospection
4011 Domino Art
4012 Friend Numbers
4013 A Sequence of Numbers
4014 Boonie and Clyde
4015 Caves
4016 David Shopping
4017 Evaluating Functions
4018 Flight Control
4019 Go to Class
4020 Hard Rode
4021 Integer Game (1)
4022 Jubilation
4023 Find a Minor
4024 Bricks (2)
4025 Color Squares
4026 Difficult Melody
4027 Expensive Drink
4028 Rotating a Frame
4029 Shoot Your Gun!
4030 Help Little Laura
4031 Integer Transmission
4032 Jewel Trading
4033 Miss Kitty and Her Little Ice Cream Shop
4034 Game of Life
4035 Undetectable Tour
4036 Uggla Mission
4037 Racing Route
4039 Sightseeing
4040 Maze For Robot
4041 Eventown Problem
4042 Expression Evaluation
4043 Ants (1)
4044 Building for UN
4045 Cactus Reloaded
4046 Diver
4047 Equation (1)
4048 Fund Management
4049 Game (3)
4050 Hanoi Towers
4051 I18n
4052 Japanese Writing
4053 Kingdom Partitioning
4054 Language Recognition
4055 Bachelor Arithmetic
4056 Nested Squares
4057 The Dumb Grocer
4058 ACM Puzzles
4059 Inspector's Dilemma
4060 The Bells are Ringing
4061 Photographic Tour
4062 You Are Around Me
4063 Infinite Matrix
4064 Magnetic Train Tracks
4065 Rock, Paper, or Scissors?
4066 Missile Command
4067 Palindromic Primes Category in Jeopardy!
4068 Rubik's Cube(R)
4069 Geek Challenge [SKRZAT] (Base Minus Two)
4070 Frogger (2)
4071 Bubble Gum, Bubble Gum, in the Dish, How Many Pieces Do You Wish
4072 Games R Us
4073 Cover Up (1)
4074 Bridged Marble Rings
4075 Close To Perfection
4076 Length Test System
4077 Energy
4078 Bodypump
4079 Gauss Prime
4080 Warfare and Logistics
4081 Resistance
4082 Traffic Jam (1)
4083 HTML Wrapper
4084 Judging Olympia
4085 Hide That Number
4086 Rotating Rings
4087 A Tale from the Dark Side of the Moon
4088 Fermat's Chirstmas Theorem
4089 Incidental Points
4090 Let's Go to the Movies
4091 The Writer's Club
4092 Moving Sticks
4093 Johnny Hates Math
4094 WonderTeam
4095 Encrypted SMS
4096 Hopeless Coach
4097 Yungom
4098 New Island
4099 Sub-Dictionary