Problems by Per Austrin

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
#exclude<scoring>0.038331424775%8.9Harden
A Different List Game0.0035378515837%9.0Harden
A List Game0.00515063447530%2.9Mediumen
A Real Challenge0.00520522859342%2.2Easyen
AI Jeopardy0.0214598815215%6.4Harden
Ace Arbiter0.00200176440223%4.9Mediumen
All Just A Dream0.05248362896427%5.6Harden
All Pairs Shortest Path0.0042719767385620%5.3Mediumen
Apparatus0.0128884423227%6.1Harden
Archaeological Recovery0.023781461328%6.0Harden
Assassins0.0130479721527%6.8Harden
Barking Up The Wrong Tree0.0023444917415%9.5Harden
Best Before0.00304145442729%3.8Mediumen
Best Compression Ever0.0052704126147%2.5Easyen
Bilateral Projects0.00148744213230%6.6Harden
Bling0.2526015747%8.5Harden
Calculator0.0053715135637%2.9Mediumen
Cars0.008484896213%7.8Harden
Cat Coat Colors0.00114079927735%3.0Mediumen
Cat vs. Dog0.00351176951529%5.9Harden
Catalan Numbers0.0054105152737%3.6Mediumen
Cheating Luck0.0061561516126%8.0Harden
Cheering Game0.00108036113337%7.3Harden
Chinese Remainder0.0055798155227%4.4Mediumen
Chinese Remainder Theorem (non-relatively prime moduli)0.0053995143036%3.6Mediumen
Chopping Wood0.012764215170140%3.1Mediumen
Closest Pair0.068918217156619%6.5Harden
Closest Pair (Uniform)0.055708386235128%4.5Mediumen
Collapse0.03405118247040%3.3Mediumen
Color Codes0.01986923033%7.9Harden
Convex Hull0.0159614592385026%4.0Mediumen
DEX Save0.006001446142%5.5Harden
Death and Taxes0.00235193463233%3.2Mediumen
Deceptive Directions0.03681132430523%6.2Harden
Disgruntled Judge0.0033137720053%3.5Mediumen
Dominant Strings0.03624283331811%8.8Harden
Dungeon Dawdler0.0548892292410%8.0Harden
Dyson Circle0.0215124510442%5.4Mediumen
Easter Eggs0.1713663585215%8.8Harden
Eulerian Path0.016174580134129%4.6Mediumen
Event Planning0.0053508151843%2.3Easyen
Exam Redistribution0.00901980107754%2.3Easyen
Exponial0.005123124320%5.3Mediumen
Fenwick Tree0.5720213702384628%3.9Mediumen
Fixing the Bugs0.0588639110627%7.4Harden
Fleecing the Raffle0.0076194855629%4.2Mediumen
Flight Plan Evaluation0.0016192017939%6.8Harden
Flight Safety0.122728791316%7.4Harden
Gaggle0.085401265040%7.0Harden
Get Shorty0.0132821789454421%3.5Mediumen
Graduation Guarantee0.08207107736334%3.7Mediumen
Hot Hike0.00805863299551%1.9Easyen
House of Cards0.005198569735%3.5Mediumen
Imperial Measurement0.001473282130640%2.1Easyen
Interception0.4637171041212%8.4Harden
Interval Cover0.033437801186124%5.3Mediumen
Just A Few More Triangles!0.0269244115535%6.3Harden
Kattis' Little Helpers0.193721471021%7.6Harden
Kitchen Combinatorics0.00403127642733%5.0Mediumen
Knapsack0.0134618994494926%4.5Mediumen
Ladder0.005201931115455%1.5Easyen
Line Segment Distance0.00806214387441%4.3Mediumen
Line Segment Intersection0.006894568102122%6.7Harden
Linear Equation Solver0.018923505104830%5.9Harden
Linear Recurrences0.03749136653039%5.1Mediumen
Lines Of Action0.0152344337%7.0Harden
Longest Increasing Subsequence0.032808212269633%5.5Harden
Maximum Flow0.0140213830399829%4.4Mediumen
Maximum Number of Colinear Points0.043762685102838%4.2Mediumen
Meow Factor0.0054071102625%3.1Mediumen
Meow Factor 20.0219248211123%6.6Harden
Methodic Multiplication0.0052580163063%1.6Easyen
Minimum Cost Maximum Flow0.0113774019149037%4.9Mediumen
Minimum Cut0.017303196129040%3.6Mediumen
Minimum Spanning Tree0.0435615380403726%4.2Mediumen
Modular Arithmetic0.002023326159648%2.9Mediumen
Moving to Nuremberg0.0879852713325%5.8Harden
Odometer Analysis0.0030945624%9.0Harden
Organising the Organisation0.0110452545522%5.8Harden
Partial Linear Equation Solver0.011452205238419%7.5Harden
Peer Streaming0.0413001833419%7.0Harden
Pitch Performance0.0012051163631%5.2Mediumen
Pizza Problems0.0610662145224%6.6Harden
Playlist0.3012517319914%6.8Harden
Point in Polygon0.003785358141826%5.5Harden
Polygon Area0.001186841279741%2.3Easyen
Polynomial Multiplication 10.001212925162155%1.8Easyen
Polynomial Multiplication 20.045944081162940%5.8Harden
Power Signs0.00519932527%8.3Harden
Primary Register0.00801893118663%2.3Easyen
Prime Sieve0.0026612748418733%4.7Mediumen
Proving Equivalences0.027634924113323%5.6Harden
Rational Arithmetic0.00646707209431%3.4Mediumen
Riddle of the Sphinx0.0028331111136%2.8Mediumen
SMS Typing0.191722100617517%8.4Harden
Shovelling Snow0.011923129514011%8.2Harden
Shovelling Snow0.0128933665415%8.6Harden
Single source shortest path, negative weights0.0139613599309523%4.0Mediumen
Single source shortest path, non-negative weights0.0233125778809131%2.9Mediumen
Single source shortest path, time table0.013787082222931%3.4Mediumen