Problems by Per Austrin – Kattis, Kattis

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Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
#exclude<scoring>	0.02	833	2598	83	3%	9.1Hard	en
A Different List Game	0.00	353	8866	640	7%	8.9Hard	en
A List Game	0.00	5	16621	4968	30%	2.7Easy	en
A Real Challenge	0.00	5	25078	10052	40%	1.7Easy	en
AI Jeopardy	0.02	145	1115	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	21566	4254	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	1641	479	29%	3.9Medium	en
Best Compression Ever	0.00	5	2996	1369	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	4159	1461	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%	7.3Hard	en
Chinese Remainder	0.00	5	6271	1763	28%	3.7Medium	en
Chinese Remainder Theorem (non-relatively prime moduli)	0.00	5	4314	1572	36%	3.5Medium	en
Chopping Wood	0.01	276	4650	1803	39%	3.3Medium	en
Closest Pair	0.05	572	9656	1843	19%	6.6Hard	en
Closest Pair (Uniform)	0.03	570	8919	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	16098	4290	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	3077	352	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	2239	1188	53%	2.5Easy	en
Exponial	0.00	5	1375	267	19%	5.5Hard	en
Fenwick Tree	0.57	202	15985	4568	29%	3.7Medium	en
Fixing the Bugs	0.05	886	424	111	26%	6.9Hard	en
Fleecing the Raffle	0.00	76	2163	603	28%	4.2Medium	en
Flight Plan Evaluation	0.00	1619	284	81	29%	7.2Hard	en
Flight Safety	0.12	2728	97	13	13%	7.5Hard	en
Gaggle	0.08	540	150	52	35%	7.0Hard	en
Get Shorty	0.01	328	22644	4784	21%	3.2Medium	en
Graduation Guarantee	0.08	207	1285	419	33%	3.8Medium	en
Hot Hike	0.00	80	6763	3404	50%	1.9Easy	en
House of Cards	0.00	5	2498	880	35%	3.6Medium	en
Imperial Measurement	0.00	147	4035	1503	37%	2.6Easy	en
Interception	0.46	3717	128	15	12%	7.8Hard	en
Interval Cover	0.03	343	8348	1962	24%	5.2Medium	en
Just A Few More Triangles!	0.02	692	482	165	34%	6.2Hard	en
Kattis' Little Helpers	0.15	3568	84	18	21%	7.1Hard	en
Kitchen Combinatorics	0.00	403	1382	462	33%	5.0Medium	en
Knapsack	0.01	282	21598	5559	26%	4.5Medium	en
Ladder	0.00	5	22175	11888	54%	1.5Easy	en
Line Segment Distance	0.00	404	2452	1008	41%	3.7Medium	en
Line Segment Intersection	0.00	689	5274	1179	22%	6.1Hard	en
Linear Equation Solver	0.01	892	3733	1109	30%	5.3Medium	en
Linear Recurrences	0.03	749	1586	621	39%	4.9Medium	en
Lines Of Action	0.01	5234	49	3	6%	7.1Hard	en
Longest Increasing Subsequence	0.03	280	9183	3002	33%	4.4Medium	en
Maximum Flow	0.01	402	15544	4585	29%	4.1Medium	en
Maximum Number of Colinear Points	0.04	376	3027	1200	40%	3.3Medium	en
Meow Factor	0.00	5	4796	1205	25%	3.5Medium	en
Meow Factor 2	0.02	192	708	169	24%	5.9Hard	en
Methodic Multiplication	0.00	5	2823	1762	62%	1.6Easy	en
Minimum Cost Maximum Flow	0.01	1377	4344	1586	37%	5.0Medium	en
Minimum Cut	0.01	730	3420	1403	41%	3.4Medium	en
Minimum Spanning Tree	0.03	356	16672	4502	27%	3.5Medium	en
Modular Arithmetic	0.00	198	3760	1808	48%	2.8Medium	en
Moving to Nuremberg	0.08	798	550	135	25%	5.4Medium	en
Odometer Analysis	0.00	1396	108	3	3%	9.4Hard	en
Organising the Organisation	0.01	970	303	69	23%	5.9Hard	en
Partial Linear Equation Solver	0.01	1070	2151	419	19%	7.2Hard	en
Peer Streaming	0.04	1300	202	35	17%	6.9Hard	en
Pitch Performance	0.00	1205	141	37	26%	5.9Hard	en
Pizza Problems	0.06	1066	240	52	22%	7.3Hard	en
Playlist	0.30	1251	821	117	14%	5.6Hard	en
Point in Polygon	0.00	378	5759	1543	27%	4.8Medium	en
Polygon Area	0.00	118	7396	3073	42%	2.1Easy	en
Polynomial Multiplication 1	0.00	121	3084	1721	56%	1.8Easy	en
Polynomial Multiplication 2	0.04	594	4344	1736	40%	5.4Medium	en
Power Signs	0.00	519	122	29	24%	7.8Hard	en
Primary Register	0.00	80	2028	1250	62%	2.4Easy	en
Prime Sieve	0.00	236	14205	4509	32%	4.3Medium	en
Proving Equivalences	0.02	740	6118	1393	23%	3.9Medium	en
Rational Arithmetic	0.00	64	7312	2287	31%	3.1Medium	en
Riddle of the Sphinx	0.00	163	709	261	37%	3.1Medium	en
SMS Typing	0.19	1722	1066	182	17%	8.4Hard	en
Shovelling Snow	0.01	1923	1332	151	11%	8.2Hard	en
Shovelling Snow	0.01	2893	468	74	16%	8.9Hard	en
Single source shortest path, negative weights	0.00	396	14820	3468	23%	3.5Medium	en
Single source shortest path, non-negative weights	0.01	331	28726	9029	31%	2.8Medium	en
Single source shortest path, time table	0.01	378	7696	2461	32%	2.8Medium	en

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