Problems by Per Austrin – Kattis, Kattis

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Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
#exclude<scoring>	0.02	833	2605	83	3%	9.1Hard	en
A Different List Game	0.00	353	8868	640	7%	8.9Hard	en
A List Game	0.00	5	16631	4971	30%	2.7Easy	en
A Real Challenge	0.00	5	25128	10066	40%	1.7Easy	en
AI Jeopardy	0.02	145	1136	171	15%	6.4Hard	en
Ace Arbiter	0.00	200	2142	458	21%	5.5Hard	en
All Just A Dream	0.02	248	3937	1026	26%	5.5Hard	en
All Pairs Shortest Path	0.00	427	21571	4257	20%	4.2Medium	en
Apparatus	0.01	288	975	260	27%	6.1Hard	en
Archaeological Recovery	0.02	2862	61	25	41%	6.6Hard	en
Assassins	0.01	304	876	245	28%	6.7Hard	en
Barking Up The Wrong Tree	0.00	2062	796	112	14%	9.2Hard	en
Best Before	0.00	304	1639	477	29%	3.9Medium	en
Best Compression Ever	0.00	5	2998	1371	46%	2.6Easy	en
Bilateral Projects	0.00	1487	503	145	29%	6.6Hard	en
Bling	0.09	2601	133	11	8%	8.2Hard	en
Calculator	0.00	5	4162	1464	35%	3.3Medium	en
Cars	0.00	826	537	72	13%	7.7Hard	en
Cat Coat Colors	0.00	1140	1103	337	31%	6.1Hard	en
Cat vs. Dog	0.00	351	2054	626	30%	5.1Medium	en
Catalan Numbers	0.00	5	4902	1842	38%	3.1Medium	en
Cheating Luck	0.00	615	650	169	26%	7.9Hard	en
Cheering Game	0.00	1080	393	136	35%	6.8Hard	en
Chinese Remainder	0.00	5	6271	1763	28%	3.7Medium	en
Chinese Remainder Theorem (non-relatively prime moduli)	0.00	5	4317	1572	36%	3.5Medium	en
Chopping Wood	0.01	276	4665	1813	39%	3.4Medium	en
Closest Pair	0.05	572	9656	1843	19%	6.6Hard	en
Closest Pair (Uniform)	0.03	570	8929	2563	29%	4.5Medium	en
Collapse	0.03	405	1284	497	39%	3.3Medium	en
Color Codes	0.01	986	122	32	26%	8.7Hard	en
Convex Hull	0.01	596	16115	4293	27%	3.9Medium	en
DEX Save	0.00	451	188	73	39%	4.6Medium	en
Death and Taxes	0.00	235	2145	705	33%	3.2Medium	en
Deceptive Directions	0.03	681	1361	313	23%	6.2Hard	en
Disgruntled Judge	0.00	331	444	225	51%	3.6Medium	en
Dominant Strings	0.02	624	3083	354	11%	8.6Hard	en
Dungeon Dawdler	0.05	4889	230	24	10%	8.0Hard	en
Dyson Circle	0.01	151	327	122	37%	6.2Hard	en
Easter Eggs	0.17	1366	366	53	14%	8.8Hard	en
Eulerian Path	0.01	617	4859	1418	29%	4.5Medium	en
Event Planning	0.00	5	4033	1681	42%	2.4Easy	en
Exam Redistribution	0.00	90	2240	1188	53%	2.5Easy	en
Exponial	0.00	5	1375	267	19%	5.5Hard	en
Fenwick Tree	0.57	202	15986	4568	29%	3.7Medium	en
Fixing the Bugs	0.05	886	425	111	26%	6.9Hard	en
Fleecing the Raffle	0.00	76	2164	603	28%	4.2Medium	en
Flight Plan Evaluation	0.00	1619	285	81	28%	7.2Hard	en
Flight Safety	0.12	2728	98	13	13%	7.5Hard	en
Gaggle	0.08	540	151	52	34%	7.0Hard	en
Get Shorty	0.01	328	22643	4782	21%	3.2Medium	en
Graduation Guarantee	0.08	207	1286	419	33%	3.8Medium	en
Hot Hike	0.00	80	6774	3412	50%	1.9Easy	en
House of Cards	0.00	5	2499	880	35%	3.6Medium	en
Imperial Measurement	0.00	147	4049	1513	37%	2.6Easy	en
Interception	0.46	3717	129	15	12%	7.8Hard	en
Interval Cover	0.03	343	8405	1974	23%	5.3Medium	en
Just A Few More Triangles!	0.02	692	483	165	34%	6.2Hard	en
Kattis' Little Helpers	0.15	3568	85	18	21%	7.1Hard	en
Kitchen Combinatorics	0.00	403	1385	462	33%	5.0Medium	en
Knapsack	0.01	282	21682	5599	26%	4.1Medium	en
Ladder	0.00	5	22176	11888	54%	1.5Easy	en
Line Segment Distance	0.00	404	2454	1008	41%	3.8Medium	en
Line Segment Intersection	0.00	689	5276	1180	22%	6.1Hard	en
Linear Equation Solver	0.01	892	3733	1109	30%	5.3Medium	en
Linear Recurrences	0.03	749	1587	621	39%	4.9Medium	en
Lines Of Action	0.01	5234	49	3	6%	7.1Hard	en
Longest Increasing Subsequence	0.03	280	9226	3023	33%	4.3Medium	en
Maximum Flow	0.01	402	15547	4587	30%	4.1Medium	en
Maximum Number of Colinear Points	0.04	376	3031	1203	40%	3.3Medium	en
Meow Factor	0.00	5	4797	1205	25%	3.5Medium	en
Meow Factor 2	0.02	192	709	169	24%	5.9Hard	en
Methodic Multiplication	0.00	5	2825	1763	62%	1.6Easy	en
Minimum Cost Maximum Flow	0.01	1377	4345	1586	37%	5.0Medium	en
Minimum Cut	0.01	730	3423	1405	41%	3.4Medium	en
Minimum Spanning Tree	0.03	356	16691	4515	27%	3.4Medium	en
Modular Arithmetic	0.00	198	3761	1808	48%	2.8Medium	en
Moving to Nuremberg	0.08	798	551	135	25%	5.4Medium	en
Odometer Analysis	0.00	1396	109	3	3%	9.4Hard	en
Organising the Organisation	0.01	970	304	69	23%	5.9Hard	en
Partial Linear Equation Solver	0.01	1070	2151	419	19%	7.2Hard	en
Peer Streaming	0.04	1300	203	35	17%	6.9Hard	en
Pitch Performance	0.00	1205	142	37	26%	5.9Hard	en
Pizza Problems	0.06	1066	241	52	22%	7.3Hard	en
Playlist	0.30	1251	822	117	14%	5.6Hard	en
Point in Polygon	0.00	378	5760	1543	27%	4.8Medium	en
Polygon Area	0.00	118	7398	3074	42%	2.1Easy	en
Polynomial Multiplication 1	0.00	121	3086	1722	56%	1.8Easy	en
Polynomial Multiplication 2	0.04	594	4345	1736	40%	5.4Medium	en
Power Signs	0.00	519	123	29	24%	7.8Hard	en
Primary Register	0.00	80	2029	1250	62%	2.4Easy	en
Prime Sieve	0.00	236	14210	4511	32%	4.2Medium	en
Proving Equivalences	0.02	740	6118	1393	23%	3.9Medium	en
Rational Arithmetic	0.00	64	7316	2288	31%	3.1Medium	en
Riddle of the Sphinx	0.00	163	709	261	37%	3.1Medium	en
SMS Typing	0.19	1722	1067	182	17%	8.4Hard	en
Shovelling Snow	0.01	1923	1334	151	11%	8.2Hard	en
Shovelling Snow	0.01	2893	469	74	16%	8.9Hard	en
Single source shortest path, negative weights	0.00	396	14821	3468	23%	3.5Medium	en
Single source shortest path, non-negative weights	0.01	331	28732	9032	31%	2.8Medium	en
Single source shortest path, time table	0.01	378	7696	2460	32%	2.8Medium	en

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