Problems by Greg Hamerly – Kattis, Kattis

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Add Two Numbers	0.00	5	32371	17567	54%	1.3Easy	en
Adding Words	0.00	192	22219	5371	24%	3.8Medium	en
All Different Directions	0.00	197	2628	1211	46%	2.8Medium	en
BASIC Interpreter	0.01	422	3343	679	20%	5.4Medium	en
Bag of Tiles	0.05	254	2751	1078	39%	5.7Hard	en
Birthday Paradox	0.00	303	355	119	34%	5.4Medium	en
Bounding Robots	0.00	257	3816	2098	55%	1.9Easy	en
Cellular Merging	0.01	1602	119	17	14%	8.1Hard	en
Charting Progress	0.00	85	4218	1785	42%	2.2Easy	en
Chatter	0.10	703	650	309	48%	4.0Medium	en
Checking For Correctness	0.00	54	2775	805	29%	4.0Medium	en
Connect the Dots	0.00	596	2042	688	34%	3.7Medium	en
Convex Polygon Area	0.00	108	2728	1499	55%	2.0Easy	en
Counting Stars	0.00	255	16234	4610	28%	2.5Easy	en
Dart Scoring	0.00	790	996	371	37%	4.5Medium	en
Das Blinkenlights	0.00	5	7376	3145	43%	1.7Easy	en
Deduplicating Files	0.01	277	4677	1378	29%	3.7Medium	en
Detailed Differences	0.00	5	20816	10673	51%	1.4Easy	en
Different Distances	0.00	78	6034	2989	50%	1.8Easy	en
Echo Echo Echo	0.00	5	31946	17681	55%	1.2Easy	en
Engineering English	0.00	51	7460	3245	43%	2.3Easy	en
Enlarging Hash Tables	0.00	136	4711	1516	32%	2.9Medium	en
Erdős Numbers	0.01	261	1380	415	30%	5.0Medium	en
Escape Plan	0.01	1045	1246	360	29%	5.6Hard	en
Estimating the Area of a Circle	0.00	5	8063	4527	56%	1.6Easy	en
Forest Fires	0.18	773	299	122	41%	3.4Medium	en
Functional Fun	0.00	367	1867	844	45%	2.1Easy	en
Fundamental Neighbors	0.00	116	1866	723	39%	3.2Medium	en
Generalized Recursive Functions	0.02	280	1268	463	37%	4.6Medium	en
Genetic Search	0.00	213	1689	883	52%	2.2Easy	en
Gerrymandering	0.00	5	3281	2085	64%	1.6Easy	en
Golomb Rulers	0.02	325	1562	760	49%	3.1Medium	en
Hall O' Wee Mirrors	0.00	339	229	99	43%	4.9Medium	en
Heliocentric	0.00	89	4142	2098	51%	2.1Easy	en
Hitting the Targets	0.00	194	3157	1885	60%	1.6Easy	en
How Many Digits?	0.00	71	8746	2346	27%	4.0Medium	en
Hurricane Danger!	0.00	199	1580	478	30%	3.9Medium	en
Image Decoding	0.00	276	3400	874	26%	3.3Medium	en
Island Hopping	0.02	292	4939	2120	43%	2.4Easy	en
Juggling Patterns	0.00	300	1387	364	26%	5.7Hard	en
Limited Correspondence	0.03	867	1315	280	21%	6.8Hard	en
Loopy Cab Drivers	0.01	958	589	151	26%	6.7Hard	en
Loopy Transit	0.00	345	353	204	58%	3.7Medium	en
Managing Packaging	0.01	400	1096	436	40%	4.9Medium	en
Mandelbrot	0.00	103	3775	1161	31%	2.9Medium	en
Matrix Inverse	0.00	93	4436	1515	34%	3.3Medium	en
Maximizing (And Minimizing) Your Winnings	0.07	363	996	416	42%	4.1Medium	en
Maximizing Your Pay	0.00	484	779	236	30%	5.2Medium	en
Maze Movement	0.02	962	1501	689	46%	3.7Medium	en
Metaprogramming	0.00	97	3866	1660	43%	2.1Easy	en
Missing Numbers	0.00	5	9880	5120	52%	1.9Easy	en
Multi-Touch Gesture Classification	0.00	2526	193	34	18%	8.1Hard	en
Music Your Way	0.00	151	2275	1122	49%	2.4Easy	en
Musical Notation	0.00	123	1686	835	50%	2.1Easy	en
Name That Permutation	0.00	111	954	391	41%	4.3Medium	en
Notable Quotables	0.00	1300	155	24	15%	7.7Hard	en
Oddities	0.00	5	45351	23903	53%	1.3Easy	en
Out of Context	0.03	1267	125	30	24%	7.1Hard	en
Pachinko Probability	0.00	540	492	194	39%	5.4Medium	en
Pachyderm Peanut Packing	0.00	390	1481	852	58%	2.1Easy	en
Page Layout	0.02	310	1527	449	29%	5.3Medium	en
Parallel Analysis	0.08	102	638	259	41%	4.6Medium	en
Parsing Hex	0.00	5	4280	1406	33%	2.8Medium	en
Permutation Encryption	0.00	187	4947	1879	38%	2.4Easy	en
Polish Notation	0.00	122	2325	605	26%	3.8Medium	en
Preludes	0.00	115	2988	1527	51%	1.9Easy	en
Primal Representation	0.02	158	2695	842	31%	4.2Medium	en
Prime Reduction	0.03	160	6338	1936	31%	2.7Easy	en
Prime Spiral	0.00	666	866	387	45%	3.2Medium	en
Quick Estimates	0.00	5	14950	8188	55%	1.6Easy	en
Quite a Problem	0.00	5	5678	2368	42%	2.1Easy	en
Race Day	0.00	579	619	267	43%	3.7Medium	en
Reachable Roads	0.00	286	6519	3274	50%	1.9Easy	en
Reversing Roads	0.00	904	3889	970	25%	3.8Medium	en
Robot Protection	0.02	286	2244	988	44%	2.7Easy	en
Saving Daylight	0.00	76	3659	1899	52%	2.2Easy	en
Secure Doors	0.00	81	8346	4101	49%	1.7Easy	en
Self-Similar Strings	0.02	147	2359	1292	55%	3.2Medium	en
Selling Spatulas	0.00	458	3969	509	13%	7.3Hard	en
Sierpiński Circumference	0.00	60	3252	1185	36%	3.0Medium	en
Sneak Attack	0.00	970	536	51	10%	8.7Hard	en
Sort Two Numbers	0.00	5	28970	14048	48%	1.3Easy	en
Sort of Sorting	0.01	5	25558	10997	43%	2.2Easy	en
Statistics	0.00	69	16505	7085	43%	1.9Easy	en
Stirling's Approximation	0.00	86	1219	511	42%	4.5Medium	en
Structural Differences	0.01	555	79	21	27%	7.2Hard	en
Substring Switcheroo	0.26	576	815	252	31%	5.6Hard	en
Sudokunique	0.01	1810	1813	298	16%	8.7Hard	en
Support Vector Machine	0.02	5	1151	311	27%	4.2Medium	en
Surveillance Squared	0.01	808	289	51	18%	7.3Hard	en
Synchronizing Lists	0.00	108	8376	4995	60%	1.6Easy	en
Texture Analysis	0.00	70	4600	1786	39%	2.9Medium	en
The Rectangles Are Surrounding Us!	0.00	123	1582	755	48%	2.6Easy	en
Transportation Planning	0.05	1157	587	204	35%	4.5Medium	en
Unicycle Counting	0.00	625	275	65	24%	7.3Hard	en
Variable Arithmetic	0.00	249	1953	788	40%	2.5Easy	en
Volume Amplification	0.09	214	1025	268	26%	6.2Hard	en
Where to Live?	0.00	123	894	323	36%	3.9Medium	en
Zipline	0.00	5	3349	1107	33%	3.6Medium	en