Problems by Per Austrin – Kattis, Kattis

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
#exclude<scoring>	0.03	833	1424	77	5%	8.9Hard	en
A Different List Game	0.00	353	7851	583	7%	9.0Hard	en
A List Game	0.00	5	15063	4475	30%	2.9Medium	en
A Real Challenge	0.00	5	20522	8593	42%	2.2Easy	en
AI Jeopardy	0.02	145	988	152	15%	6.4Hard	en
Ace Arbiter	0.00	200	1764	402	23%	4.9Medium	en
All Just A Dream	0.05	248	3628	964	27%	5.6Hard	en
All Pairs Shortest Path	0.00	427	19767	3856	20%	5.3Medium	en
Apparatus	0.01	288	844	232	27%	6.1Hard	en
Archaeological Recovery	0.02	3781	46	13	28%	6.0Hard	en
Assassins	0.01	304	797	215	27%	6.8Hard	en
Barking Up The Wrong Tree	0.00	2344	491	74	15%	9.5Hard	en
Best Before	0.00	304	1454	427	29%	3.8Medium	en
Best Compression Ever	0.00	5	2704	1261	47%	2.5Easy	en
Bilateral Projects	0.00	1487	442	132	30%	6.6Hard	en
Bling	0.25	2601	57	4	7%	8.5Hard	en
Calculator	0.00	5	3715	1356	37%	2.9Medium	en
Cars	0.00	848	489	62	13%	7.8Hard	en
Cat Coat Colors	0.00	1140	799	277	35%	3.0Medium	en
Cat vs. Dog	0.00	351	1769	515	29%	5.9Hard	en
Catalan Numbers	0.00	5	4105	1527	37%	3.6Medium	en
Cheating Luck	0.00	615	615	161	26%	8.0Hard	en
Cheering Game	0.00	1080	361	133	37%	7.3Hard	en
Chinese Remainder	0.00	5	5798	1552	27%	4.4Medium	en
Chinese Remainder Theorem (non-relatively prime moduli)	0.00	5	3995	1430	36%	3.6Medium	en
Chopping Wood	0.01	276	4215	1701	40%	3.1Medium	en
Closest Pair	0.06	891	8217	1566	19%	6.5Hard	en
Closest Pair (Uniform)	0.05	570	8386	2351	28%	4.5Medium	en
Collapse	0.03	405	1182	470	40%	3.3Medium	en
Color Codes	0.01	986	92	30	33%	7.9Hard	en
Convex Hull	0.01	596	14592	3850	26%	4.0Medium	en
DEX Save	0.00	600	144	61	42%	5.5Hard	en
Death and Taxes	0.00	235	1934	632	33%	3.2Medium	en
Deceptive Directions	0.03	681	1324	305	23%	6.2Hard	en
Disgruntled Judge	0.00	331	377	200	53%	3.5Medium	en
Dominant Strings	0.03	624	2833	318	11%	8.8Hard	en
Dungeon Dawdler	0.05	4889	229	24	10%	8.0Hard	en
Dyson Circle	0.02	151	245	104	42%	5.4Medium	en
Easter Eggs	0.17	1366	358	52	15%	8.8Hard	en
Eulerian Path	0.01	617	4580	1341	29%	4.6Medium	en
Event Planning	0.00	5	3508	1518	43%	2.3Easy	en
Exam Redistribution	0.00	90	1980	1077	54%	2.3Easy	en
Exponial	0.00	5	1231	243	20%	5.3Medium	en
Fenwick Tree	0.57	202	13702	3846	28%	3.9Medium	en
Fixing the Bugs	0.05	886	391	106	27%	7.4Hard	en
Fleecing the Raffle	0.00	76	1948	556	29%	4.2Medium	en
Flight Plan Evaluation	0.00	1619	201	79	39%	6.8Hard	en
Flight Safety	0.12	2728	79	13	16%	7.4Hard	en
Gaggle	0.08	540	126	50	40%	7.0Hard	en
Get Shorty	0.01	328	21789	4544	21%	3.5Medium	en
Graduation Guarantee	0.08	207	1077	363	34%	3.7Medium	en
Hot Hike	0.00	80	5863	2995	51%	1.9Easy	en
House of Cards	0.00	5	1985	697	35%	3.5Medium	en
Imperial Measurement	0.00	147	3282	1306	40%	2.1Easy	en
Interception	0.46	3717	104	12	12%	8.4Hard	en
Interval Cover	0.03	343	7801	1861	24%	5.3Medium	en
Just A Few More Triangles!	0.02	692	441	155	35%	6.3Hard	en
Kattis' Little Helpers	0.19	3721	47	10	21%	7.6Hard	en
Kitchen Combinatorics	0.00	403	1276	427	33%	5.0Medium	en
Knapsack	0.01	346	18994	4949	26%	4.5Medium	en
Ladder	0.00	5	20193	11154	55%	1.5Easy	en
Line Segment Distance	0.00	806	2143	874	41%	4.3Medium	en
Line Segment Intersection	0.00	689	4568	1021	22%	6.7Hard	en
Linear Equation Solver	0.01	892	3505	1048	30%	5.9Hard	en
Linear Recurrences	0.03	749	1366	530	39%	5.1Medium	en
Lines Of Action	0.01	5234	43	3	7%	7.0Hard	en
Longest Increasing Subsequence	0.03	280	8212	2696	33%	5.5Hard	en
Maximum Flow	0.01	402	13830	3998	29%	4.4Medium	en
Maximum Number of Colinear Points	0.04	376	2685	1028	38%	4.2Medium	en
Meow Factor	0.00	5	4071	1026	25%	3.1Medium	en
Meow Factor 2	0.02	192	482	111	23%	6.6Hard	en
Methodic Multiplication	0.00	5	2580	1630	63%	1.6Easy	en
Minimum Cost Maximum Flow	0.01	1377	4019	1490	37%	4.9Medium	en
Minimum Cut	0.01	730	3196	1290	40%	3.6Medium	en
Minimum Spanning Tree	0.04	356	15380	4037	26%	4.2Medium	en
Modular Arithmetic	0.00	202	3326	1596	48%	2.9Medium	en
Moving to Nuremberg	0.08	798	527	133	25%	5.8Hard	en
Odometer Analysis	0.00	3094	56	2	4%	9.0Hard	en
Organising the Organisation	0.01	1045	254	55	22%	5.8Hard	en
Partial Linear Equation Solver	0.01	1452	2052	384	19%	7.5Hard	en
Peer Streaming	0.04	1300	183	34	19%	7.0Hard	en
Pitch Performance	0.00	1205	116	36	31%	5.2Medium	en
Pizza Problems	0.06	1066	214	52	24%	6.6Hard	en
Playlist	0.30	1251	731	99	14%	6.8Hard	en
Point in Polygon	0.00	378	5358	1418	26%	5.5Hard	en
Polygon Area	0.00	118	6841	2797	41%	2.3Easy	en
Polynomial Multiplication 1	0.00	121	2925	1621	55%	1.8Easy	en
Polynomial Multiplication 2	0.04	594	4081	1629	40%	5.8Hard	en
Power Signs	0.00	519	93	25	27%	8.3Hard	en
Primary Register	0.00	80	1893	1186	63%	2.3Easy	en
Prime Sieve	0.00	266	12748	4187	33%	4.7Medium	en
Proving Equivalences	0.02	763	4924	1133	23%	5.6Hard	en
Rational Arithmetic	0.00	64	6707	2094	31%	3.4Medium	en
Riddle of the Sphinx	0.00	283	311	111	36%	2.8Medium	en
SMS Typing	0.19	1722	1006	175	17%	8.4Hard	en
Shovelling Snow	0.01	1923	1295	140	11%	8.2Hard	en
Shovelling Snow	0.01	2893	366	54	15%	8.6Hard	en
Single source shortest path, negative weights	0.01	396	13599	3095	23%	4.0Medium	en
Single source shortest path, non-negative weights	0.02	331	25778	8091	31%	2.9Medium	en
Single source shortest path, time table	0.01	378	7082	2229	31%	3.4Medium	en

1 2