Problems by Per Austrin

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
#exclude<scoring>0.028332598833%9.1Harden
A Different List Game0.0035388666407%8.9Harden
A List Game0.00516621496830%2.7Easyen
A Real Challenge0.005250781005240%1.7Easyen
AI Jeopardy0.02145111517115%6.4Harden
Ace Arbiter0.00200214245821%5.5Harden
All Just A Dream0.022483937102626%5.5Harden
All Pairs Shortest Path0.0042721566425420%4.2Mediumen
Apparatus0.0128897526027%6.1Harden
Archaeological Recovery0.022862612541%6.6Harden
Assassins0.0130487624528%6.7Harden
Barking Up The Wrong Tree0.00206279611214%9.2Harden
Best Before0.00304164147929%3.9Mediumen
Best Compression Ever0.0052996136946%2.6Easyen
Bilateral Projects0.00148750314529%6.6Harden
Bling0.092601133118%8.2Harden
Calculator0.0054159146135%3.3Mediumen
Cars0.008265377213%7.7Harden
Cat Coat Colors0.001140110333731%6.1Harden
Cat vs. Dog0.00351205462630%5.1Mediumen
Catalan Numbers0.0054902184238%3.1Mediumen
Cheating Luck0.0061565016926%7.9Harden
Cheering Game0.00108039313635%7.3Harden
Chinese Remainder0.0056271176328%3.7Mediumen
Chinese Remainder Theorem (non-relatively prime moduli)0.0054314157236%3.5Mediumen
Chopping Wood0.012764650180339%3.3Mediumen
Closest Pair0.055729656184319%6.6Harden
Closest Pair (Uniform)0.035708919256329%4.5Mediumen
Collapse0.03405128449739%3.3Mediumen
Color Codes0.019861223226%8.7Harden
Convex Hull0.0159616098429027%3.9Mediumen
DEX Save0.004511887339%4.6Mediumen
Death and Taxes0.00235214570533%3.2Mediumen
Deceptive Directions0.03681136131323%6.2Harden
Disgruntled Judge0.0033144422551%3.6Mediumen
Dominant Strings0.02624307735211%8.6Harden
Dungeon Dawdler0.0548892302410%8.0Harden
Dyson Circle0.0115132712237%6.2Harden
Easter Eggs0.1713663665314%8.8Harden
Eulerian Path0.016174859141829%4.5Mediumen
Event Planning0.0054033168142%2.4Easyen
Exam Redistribution0.00902239118853%2.5Easyen
Exponial0.005137526719%5.5Harden
Fenwick Tree0.5720215985456829%3.7Mediumen
Fixing the Bugs0.0588642411126%6.9Harden
Fleecing the Raffle0.0076216360328%4.2Mediumen
Flight Plan Evaluation0.0016192848129%7.2Harden
Flight Safety0.122728971313%7.5Harden
Gaggle0.085401505235%7.0Harden
Get Shorty0.0132822644478421%3.2Mediumen
Graduation Guarantee0.08207128541933%3.8Mediumen
Hot Hike0.00806763340450%1.9Easyen
House of Cards0.005249888035%3.6Mediumen
Imperial Measurement0.001474035150337%2.6Easyen
Interception0.4637171281512%7.8Harden
Interval Cover0.033438348196224%5.2Mediumen
Just A Few More Triangles!0.0269248216534%6.2Harden
Kattis' Little Helpers0.153568841821%7.1Harden
Kitchen Combinatorics0.00403138246233%5.0Mediumen
Knapsack0.0128221598555926%4.5Mediumen
Ladder0.005221751188854%1.5Easyen
Line Segment Distance0.004042452100841%3.7Mediumen
Line Segment Intersection0.006895274117922%6.1Harden
Linear Equation Solver0.018923733110930%5.3Mediumen
Linear Recurrences0.03749158662139%4.9Mediumen
Lines Of Action0.0152344936%7.1Harden
Longest Increasing Subsequence0.032809183300233%4.4Mediumen
Maximum Flow0.0140215544458529%4.1Mediumen
Maximum Number of Colinear Points0.043763027120040%3.3Mediumen
Meow Factor0.0054796120525%3.5Mediumen
Meow Factor 20.0219270816924%5.9Harden
Methodic Multiplication0.0052823176262%1.6Easyen
Minimum Cost Maximum Flow0.0113774344158637%5.0Mediumen
Minimum Cut0.017303420140341%3.4Mediumen
Minimum Spanning Tree0.0335616672450227%3.5Mediumen
Modular Arithmetic0.001983760180848%2.8Mediumen
Moving to Nuremberg0.0879855013525%5.4Mediumen
Odometer Analysis0.00139610833%9.4Harden
Organising the Organisation0.019703036923%5.9Harden
Partial Linear Equation Solver0.011070215141919%7.2Harden
Peer Streaming0.0413002023517%6.9Harden
Pitch Performance0.0012051413726%5.9Harden
Pizza Problems0.0610662405222%7.3Harden
Playlist0.30125182111714%5.6Harden
Point in Polygon0.003785759154327%4.8Mediumen
Polygon Area0.001187396307342%2.1Easyen
Polynomial Multiplication 10.001213084172156%1.8Easyen
Polynomial Multiplication 20.045944344173640%5.4Mediumen
Power Signs0.005191222924%7.8Harden
Primary Register0.00802028125062%2.4Easyen
Prime Sieve0.0023614205450932%4.3Mediumen
Proving Equivalences0.027406118139323%3.9Mediumen
Rational Arithmetic0.00647312228731%3.1Mediumen
Riddle of the Sphinx0.0016370926137%3.1Mediumen
SMS Typing0.191722106618217%8.4Harden
Shovelling Snow0.011923133215111%8.2Harden
Shovelling Snow0.0128934687416%8.9Harden
Single source shortest path, negative weights0.0039614820346823%3.5Mediumen
Single source shortest path, non-negative weights0.0133128726902931%2.8Mediumen
Single source shortest path, time table0.013787696246132%2.8Mediumen