Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	12256	1908	16%	0.00	2483	1306	53%	6.4
2048	10969	5012	46%	0.00	4886	4157	85%	2.7
3D Printed Statues	14948	6861	46%	0.00	6460	5770	89%	2.2
3D Printer	1025	166	16%	0.00	429	128	30%	8.9
3-Sided Dice	2951	240	8%	0.00	485	168	35%	8.8
4 thought	13014	4460	34%	0.00	4248	3580	84%	2.8
A1 Paper	6909	2084	30%	0.00	2071	1650	80%	3.7
Aaah!	37409	17538	47%	0.00	15806	14758	93%	1.5
ABC	20681	9368	45%	0.00	8904	8074	91%	1.8
Above Average	13640	5652	41%	0.00	5445	4884	90%	2.2
Abstract Art	469	155	33%	0.00	131	95	73%	6.5
Abstract Painting	1189	472	40%	0.00	415	336	81%	4.2
Absurdistan Roads II	710	238	34%	0.00	241	158	66%	7.1
ACM Contest Scoring	8731	5445	62%	0.00	4863	4599	95%	1.5
Adding Words	14906	3661	25%	0.00	3430	2685	78%	3.9
Add Two Numbers	5606	3724	66%	0.00	3505	3373	96%	1.3
A Different List Game	7563	524	7%	0.00	1002	192	19%	9.3
A Different Problem	42318	15619	37%	0.00	14286	12367	87%	2.7
Adjoin the Networks	2790	704	25%	0.00	609	485	80%	5.7
Ads	874	92	11%	0.00	170	66	39%	5.1
Adventures in Moving -- Part IV	1802	403	22%	0.00	348	285	82%	5.0
A Favourable Ending	2167	578	27%	0.00	534	413	77%	4.5
A Feast For Cats	3547	1331	38%	0.00	971	840	87%	3.4
Air Conditioned Minions	7476	2196	29%	0.00	2194	1693	77%	3.9
Airport Logistics	71	19	27%	0.00	25	18	72%	7.0
Akcija	10642	4795	45%	0.00	4286	3824	89%	2.2
Alex and Barb	1262	439	35%	0.00	514	397	77%	3.5
Alien Microwave	249	98	39%	0.00	128	94	73%	6.7
Alien Numbers	3006	1587	53%	0.00	1555	1424	92%	1.9
A List Game	11141	3368	30%	0.00	3247	2747	85%	3.0
All about that base	3389	1344	40%	0.00	1297	1098	85%	3.0
All Different Directions	1743	810	46%	0.00	767	687	90%	2.5
Allergy Test	660	169	26%	0.00	215	107	50%	8.0
All Friends	1171	223	19%	0.00	211	112	53%	8.8
All in the Family	150	34	23%	0.00	49	32	65%	5.9
All Kill	124	102	82%	0.00	58	51	88%	3.6
Alloys	926	331	36%	0.00	347	287	83%	4.0
All Pairs Shortest Path	14021	2702	19%	0.00	1709	1227	72%	5.8
Almost Perfect	13764	3088	22%	0.00	3155	2509	80%	3.2
Alphabet	2711	1386	51%	0.00	1320	1120	85%	3.1
Alphabet Animals	8402	1547	18%	0.00	1364	977	72%	6.5
Alphabet Spam	11225	7005	62%	0.00	5957	5730	96%	1.4
Alternating Current	705	687	97%	0.00	120	117	98%	1.4 - 8.3
Alternative Anagram	267	85	32%	0.00	78	56	72%	7.3
Alternative Bracket Notation	240	104	43%	0.00	112	92	82%	5.4
Alto Singing	95	41	43%	0.00	42	39	93%	4.4
Amsterdam Distance	2327	1156	50%	0.00	1170	1004	86%	2.6
A Multiplication Game	1316	540	41%	0.00	581	450	77%	4.3
Anagram Counting	4795	1921	40%	0.00	1856	1561	84%	3.0
A New Adventure	1552	235	15%	0.00	230	165	72%	5.8
A New Alphabet	14159	6382	45%	0.00	5985	5499	92%	2.0
An I for an Eye	1330	382	29%	0.00	445	329	74%	4.9
Another Brick in the Wall	4506	2289	51%	0.00	2232	2031	91%	2.1
Another Candies	10656	2973	28%	0.00	2988	2510	84%	2.6
Another Coin Weighing Puzzle	771	209	27%	0.00	146	117	80%	6.2
Another Dice Game	136	84	62%	0.00	83	70	84%	4.5
Antenna Placement	201	84	42%	0.00	73	53	73%	7.7
Anthony and Cora	1272	307	24%	0.00	353	243	69%	5.6
Anthony and Diablo	4394	1616	37%	0.00	1638	1426	87%	2.5
Ants	5070	2304	45%	0.00	1881	1661	88%	2.5
Apaxiaaaaaaaaaaaans!	18341	11054	60%	0.00	9880	9431	95%	1.4
Apostrophe Catastrophe	148	39	26%	0.00	38	26	68%	6.5
Appalling Architecture	916	271	30%	0.00	243	202	83%	4.2
A Prize No One Can Win	6222	1980	32%	0.00	1633	1446	89%	2.3
Aquarium Tank	597	173	29%	0.00	169	130	77%	6.3
A Question of Ingestion	2178	498	23%	0.00	457	348	76%	5.7
A Random Problem	394	102	26%	0.00	92	65	71%	6.9
A Rank Problem	225	104	46%	0.00	112	95	85%	3.2
A Rational Sequence	2159	749	35%	0.00	783	581	74%	4.9
A Rational Sequence 2	2790	2075	74%	0.00	1829	1760	96%	1.5
A Rational Sequence (Take 3)	1318	1063	81%	0.00	901	863	96%	1.7
Arboriculture	64	41	64%	0.00	21	20	95%	4.5 - 7.7
Archimedes	35	7	20%	0.00	7	6	86%	5.0
Architecture	406	209	51%	0.00	204	182	89%	3.1
Arctic Network	2750	979	36%	0.00	749	620	83%	4.2
A Real Challenge	11522	5689	49%	0.00	5384	5069	94%	1.5
Are You Listening?	2777	900	32%	0.00	857	774	90%	2.6
Arithmetic	3979	1219	31%	0.00	1226	972	79%	3.7
Arithmetic Decoding	181	112	62%	0.00	99	91	92%	2.6
Arithmetic Functions	81	51	63%	0.00	50	49	98%	2.1
ARMPIT Computations	12	7	58%	0.00	7	6	86%	4.8
Army Strength (Easy)	4472	2266	51%	0.00	2126	1909	90%	2.4
Around and Around We Go	59	16	27%	0.00	27	15	56%	7.3
Around the Track	308	40	13%	0.00	66	30	45%	9.2
Arrangement	812	686	84%	0.00	613	593	97%	1.3 - 1.8
Array of Discord	3568	726	20%	0.00	638	462	72%	5.1
ASCII Addition	1563	925	59%	0.00	827	783	95%	1.9
ASCII Figure Rotation	2485	831	33%	0.00	861	730	85%	3.4
As Easy as CAB	1371	133	10%	0.00	295	105	36%	9.0
Aspen Avenue	2302	646	28%	0.00	441	292	66%	6.5
Association for Computing Machinery	2996	1152	38%	0.00	1023	904	88%	2.7
Association for Cool Machineries (Part 2)	48	28	58%	0.00	33	25	76%	6.5
Association for the Country of Mububa	2080	433	21%	0.00	475	301	63%	7.1
Association of Myths	77	41	53%	0.00	48	39	81%	5.8
A Star not a Tree?	254	78	31%	0.00	65	46	71%	5.6
Asteroids	760	138	18%	0.00	110	79	72%	7.3
Astro	643	207	32%	0.00	203	173	85%	4.1
Astrological Sign	1514	654	43%	0.00	608	543	89%	1.9
A Towering Problem	2818	1366	48%	0.00	1377	1241	90%	2.3
Autori	32506	19532	60%	0.00	17098	16419	96%	1.4