Problems by Per Austrin – Kattis, Kattis

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
#exclude<scoring>	0.03	833	1217	36	3%	9.0Hard	en
A Different List Game	0.00	353	8581	607	7%	9.0Hard	en
A List Game	0.00	5	15259	4560	30%	2.9Medium	en
A Real Challenge	0.00	5	19981	8536	43%	2.2Easy	en
AI Jeopardy	0.02	145	997	153	15%	6.3Hard	en
Ace Arbiter	0.00	200	1670	388	23%	5.0Medium	en
All Just A Dream	0.05	248	3740	983	26%	5.6Hard	en
All Pairs Shortest Path	0.00	427	19760	3843	19%	5.4Medium	en
Apparatus	0.01	288	926	248	27%	6.1Hard	en
Archaeological Recovery	--	--	3	0	0%	5.9Hard	en
Assassins	0.01	304	816	228	28%	6.9Hard	en
Barking Up The Wrong Tree	0.00	2344	441	59	13%	9.6Hard	en
Best Before	0.00	304	1440	439	30%	3.7Medium	en
Best Compression Ever	0.00	5	2781	1312	47%	2.6Easy	en
Bilateral Projects	0.00	1487	429	133	31%	6.3Hard	en
Bling	0.25	2601	48	4	8%	8.5Hard	en
Calculator	0.00	5	3730	1356	36%	2.9Medium	en
Cars	0.00	826	497	68	14%	7.8Hard	en
Cat Coat Colors	0.00	1140	772	269	35%	3.0Medium	en
Cat vs. Dog	0.00	351	1810	530	29%	6.0Hard	en
Catalan Numbers	0.00	5	4303	1641	38%	3.6Medium	en
Cheating Luck	0.00	615	612	162	26%	7.8Hard	en
Cheering Game	0.00	1080	361	134	37%	6.8Hard	en
Chinese Remainder	0.00	5	5857	1600	27%	4.5Medium	en
Chinese Remainder Theorem (non-relatively prime moduli)	0.00	5	3968	1436	36%	3.9Medium	en
Chopping Wood	0.01	276	4219	1698	40%	3.1Medium	en
Closest Pair	0.06	1099	7708	1434	19%	6.9Hard	en
Closest Pair (Uniform)	0.05	570	8150	2220	27%	4.8Medium	en
Collapse	0.03	405	1173	471	40%	3.4Medium	en
Color Codes	0.01	986	90	32	36%	8.0Hard	en
Convex Hull	0.01	644	14433	3811	26%	4.2Medium	en
DEX Save	0.00	600	136	60	44%	5.4Medium	en
Death and Taxes	0.00	235	1910	628	33%	3.3Medium	en
Deceptive Directions	0.03	681	1302	303	23%	6.2Hard	en
Disgruntled Judge	0.00	331	375	206	55%	3.6Medium	en
Dominant Strings	0.03	624	2855	318	11%	8.8Hard	en
Dungeon Dawdler	0.05	4889	220	24	11%	8.0Hard	en
Dyson Circle	0.02	151	230	103	45%	5.6Hard	en
Easter Eggs	0.17	1366	343	50	15%	9.0Hard	en
Eulerian Path	0.01	617	4560	1329	29%	4.7Medium	en
Event Planning	0.00	5	3444	1491	43%	2.3Easy	en
Exam Redistribution	0.00	90	2023	1107	55%	2.4Easy	en
Exponial	0.00	5	1201	244	20%	5.3Medium	en
Fenwick Tree	0.57	202	13625	3856	28%	4.1Medium	en
Fixing the Bugs	0.05	886	389	103	26%	7.3Hard	en
Fleecing the Raffle	0.00	76	1984	567	29%	4.3Medium	en
Flight Plan Evaluation	0.00	1619	195	80	41%	6.7Hard	en
Flight Safety	0.12	2728	70	13	19%	7.4Hard	en
Gaggle	0.08	540	122	51	42%	6.9Hard	en
Get Shorty	0.01	328	22155	4623	21%	3.5Medium	en
Graduation Guarantee	0.08	207	1049	354	34%	3.7Medium	en
Hot Hike	0.00	80	5816	2966	51%	1.9Easy	en
House of Cards	0.00	5	2067	755	37%	3.6Medium	en
Imperial Measurement	0.00	147	3326	1326	40%	2.1Easy	en
Interception	0.46	3717	97	12	12%	8.4Hard	en
Interval Cover	0.03	343	7761	1860	24%	5.3Medium	en
Just A Few More Triangles!	0.02	692	419	157	37%	6.1Hard	en
Kattis' Little Helpers	0.19	3568	41	11	27%	7.5Hard	en
Kitchen Combinatorics	0.00	403	1292	435	34%	5.2Medium	en
Knapsack	0.01	346	18732	4812	26%	4.4Medium	en
Ladder	0.00	5	20414	11319	55%	1.6Easy	en
Line Segment Distance	0.00	806	2134	870	41%	4.3Medium	en
Line Segment Intersection	0.00	689	4569	1018	22%	6.7Hard	en
Linear Equation Solver	0.01	892	3518	1048	30%	6.1Hard	en
Linear Recurrences	0.03	749	1387	545	39%	5.1Medium	en
Lines Of Action	0.01	5234	35	3	9%	7.0Hard	en
Longest Increasing Subsequence	0.03	285	8127	2675	33%	5.6Hard	en
Maximum Flow	0.01	402	14045	4166	30%	4.4Medium	en
Maximum Number of Colinear Points	0.04	376	2673	1012	38%	4.4Medium	en
Meow Factor	0.00	5	4101	1069	26%	3.1Medium	en
Meow Factor 2	0.02	192	507	125	25%	6.5Hard	en
Methodic Multiplication	0.00	5	2565	1628	63%	1.6Easy	en
Minimum Cost Maximum Flow	0.01	1377	3956	1482	37%	5.0Medium	en
Minimum Cut	0.01	1076	3202	1298	41%	3.6Medium	en
Minimum Spanning Tree	0.04	356	15325	4064	27%	4.3Medium	en
Modular Arithmetic	0.00	202	3346	1604	48%	2.9Medium	en
Moving to Nuremberg	0.08	798	509	127	25%	5.8Hard	en
Odometer Analysis	0.00	1396	48	3	6%	9.0Hard	en
Organising the Organisation	0.01	1045	251	56	22%	5.8Hard	en
Partial Linear Equation Solver	0.01	1452	2047	389	19%	7.5Hard	en
Peer Streaming	0.04	1300	174	34	20%	6.9Hard	en
Pitch Performance	0.00	1205	104	36	35%	5.0Medium	en
Pizza Problems	0.06	1066	205	52	25%	6.6Hard	en
Playlist	0.30	1251	719	97	13%	7.7Hard	en
Point in Polygon	0.00	378	5360	1404	26%	5.6Hard	en
Polygon Area	0.00	118	6860	2808	41%	2.5Easy	en
Polynomial Multiplication 1	0.00	121	2946	1633	55%	1.9Easy	en
Polynomial Multiplication 2	0.04	594	4104	1647	40%	5.9Hard	en
Power Signs	0.00	519	84	25	30%	8.3Hard	en
Primary Register	0.00	80	1916	1204	63%	2.3Easy	en
Prime Sieve	0.00	266	12901	4187	32%	4.8Medium	en
Proving Equivalences	0.02	763	4851	1118	23%	5.6Hard	en
Rational Arithmetic	0.00	64	6732	2121	32%	3.4Medium	en
Riddle of the Sphinx	0.00	283	138	54	39%	3.2Medium	en
SMS Typing	0.19	1722	1032	179	17%	8.4Hard	en
Shovelling Snow	0.01	1923	1281	140	11%	8.2Hard	en
Shovelling Snow	0.01	2893	377	55	15%	8.6Hard	en
Single source shortest path, negative weights	0.01	396	13466	3073	23%	4.3Medium	en
Single source shortest path, non-negative weights	0.02	331	25863	8100	31%	3.0Medium	en
Single source shortest path, time table	0.01	378	7080	2213	31%	3.5Medium	en

1 2