Problems by Greg Hamerly

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Add Two Numbers0.005302221654755%1.3Easyen
Adding Words0.0019221682526724%4.2Mediumen
All Different Directions0.001972552118546%2.7Easyen
BASIC Interpreter0.01422326966720%5.3Mediumen
Bag of Tiles0.06254244088336%5.5Harden
Birthday Paradox0.0030334911834%5.4Mediumen
Bounding Robots0.002573716204855%1.9Easyen
Cellular Merging0.0116021181714%8.1Harden
Charting Progress0.00854185176642%2.1Easyen
Chatter0.1070362529447%4.1Mediumen
Checking For Correctness0.0054266278529%4.0Mediumen
Connect the Dots0.00596195065934%3.7Mediumen
Convex Polygon Area0.001082665146355%2.0Easyen
Counting Stars0.0025515981449328%2.8Mediumen
Dart Scoring0.0079096036738%4.3Mediumen
Das Blinkenlights0.0057318310742%1.8Easyen
Deduplicating Files0.012774647136729%3.6Mediumen
Detailed Differences0.0051203081041851%1.4Easyen
Different Distances0.00785949294149%1.8Easyen
Echo Echo Echo0.005308041706655%1.2Easyen
Engineering English0.00517432322643%2.4Easyen
Enlarging Hash Tables0.001364639148932%2.9Mediumen
Erdős Numbers0.01261136340830%5.1Mediumen
Escape Plan0.011045121034829%5.6Harden
Estimating the Area of a Circle0.0057839443257%1.6Easyen
Forest Fires0.18105125310341%5.0Mediumen
Functional Fun0.00368183783245%2.1Easyen
Fundamental Neighbors0.00123178768438%3.4Mediumen
Generalized Recursive Functions0.02280126746337%4.6Mediumen
Genetic Search0.00213165486052%2.2Easyen
Gerrymandering0.001833207203964%1.7Easyen
Golomb Rulers0.02325154174248%3.2Mediumen
Hall O' Wee Mirrors0.003392279843%4.9Mediumen
Heliocentric0.00894063207051%2.0Easyen
Hitting the Targets0.001943095184360%1.7Easyen
How Many Digits?0.00718551228927%4.1Mediumen
Hurricane Danger!0.00199151446631%3.9Mediumen
Image Decoding0.00276334086626%3.3Mediumen
Island Hopping0.022924732201243%2.6Easyen
Juggling Patterns0.00300132934526%5.7Harden
Limited Correspondence0.03867131428021%6.9Harden
Loopy Cab Drivers0.0195857214726%6.7Harden
Loopy Transit0.0034534419858%3.6Mediumen
Managing Packaging0.01400107843040%4.8Mediumen
Mandelbrot0.001033741114831%3.0Mediumen
Matrix Inverse0.00934288147434%3.2Mediumen
Maximizing (And Minimizing) Your Winnings0.0736398540541%4.1Mediumen
Maximizing Your Pay0.0048474222530%5.2Mediumen
Maze Movement0.02962143066747%3.7Mediumen
Metaprogramming0.00973831163243%2.2Easyen
Missing Numbers0.0059755505952%2.0Easyen
Multi-Touch Gesture Classification0.0025261923418%8.2Harden
Music Your Way0.001512209108649%2.4Easyen
Musical Notation0.00123165481849%2.1Easyen
Name That Permutation0.0011194738941%4.3Mediumen
Notable Quotables0.0013001532416%7.8Harden
Oddities0.005444582347653%1.3Easyen
Out of Context0.0312671233024%7.2Harden
Pachinko Probability0.0057548119240%5.5Harden
Pachyderm Peanut Packing0.00390143683058%2.0Easyen
Page Layout0.02310142342430%5.1Mediumen
Parallel Analysis0.0810259825342%4.5Mediumen
Parsing Hex0.0054222138433%2.8Mediumen
Permutation Encryption0.001874879184838%2.4Easyen
Polish Notation0.00122230059926%3.8Mediumen
Preludes0.001152900148151%1.9Easyen
Primal Representation0.02158268083231%4.3Mediumen
Prime Reduction0.031606219187730%2.8Mediumen
Prime Spiral0.0066685338045%3.2Mediumen
Quick Estimates0.00514733807255%1.7Easyen
Quite a Problem0.0055480231042%2.1Easyen
Race Day0.0057961526543%3.7Mediumen
Reachable Roads0.002866208309150%2.1Easyen
Reversing Roads0.00904377294725%3.9Mediumen
Robot Protection0.02286203888944%2.7Easyen
Saving Daylight0.00763613187652%2.1Easyen
Secure Doors0.00818213402949%1.7Easyen
Self-Similar Strings0.021472325127355%3.2Mediumen
Selling Spatulas0.00626371746613%7.3Harden
Sierpiński Circumference0.00603240117836%3.0Mediumen
Sneak Attack0.009705355110%8.7Harden
Sort Two Numbers0.005280671364049%1.4Easyen
Sort of Sorting0.015251411085043%1.8Easyen
Statistics0.006916228694443%1.9Easyen
Stirling's Approximation0.0086121450742%4.6Mediumen
Structural Differences0.01555782127%7.3Harden
Substring Switcheroo0.2657679224231%5.7Harden
Sudokunique0.011810177527215%8.7Harden
Support Vector Machine0.025113630427%4.3Mediumen
Surveillance Squared0.018082865017%7.5Harden
Synchronizing Lists0.001088241490860%1.6Easyen
Texture Analysis0.00704506175739%2.9Mediumen
The Rectangles Are Surrounding Us!0.00123153673148%2.6Easyen
Transportation Planning0.05115755719435%4.5Mediumen
Unicycle Counting0.007432686424%7.4Harden
Variable Arithmetic0.00249194278140%2.5Easyen
Volume Amplification0.0921465920531%6.7Harden
Where to Live?0.0012384731337%4.0Mediumen
Zipline0.0053348110733%3.7Mediumen