Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	10803	1689	16%	0.00	2190	1161	53%	5.5
2048	10226	4682	46%	0.00	4510	3864	86%	2.5
3D Printed Statues	13449	6191	46%	0.00	5777	5183	90%	2.0
3D Printer	942	156	17%	0.00	388	119	31%	8.8
3-Sided Dice	2828	231	8%	0.00	452	160	35%	8.7
4 thought	11704	4017	34%	0.00	3857	3260	85%	2.6
A1 Paper	6399	1927	30%	0.00	1909	1522	80%	3.7
Aaah!	34059	15870	47%	0.00	14245	13298	93%	1.5
ABC	18239	8322	46%	0.00	7853	7140	91%	1.7
Above Average	12150	5055	42%	0.00	4862	4368	90%	1.8
Abstract Art	445	147	33%	0.00	117	89	76%	5.7
Abstract Painting	956	396	41%	0.00	361	295	82%	3.8
Absurdistan Roads II	691	235	34%	0.00	232	155	67%	6.9
ACM Contest Scoring	8137	5091	63%	0.00	4553	4301	94%	1.5
Adding Words	13515	3340	25%	0.00	3160	2477	78%	3.5
A Different List Game	7445	515	7%	0.00	971	187	19%	9.3
A Different Problem	38769	14387	37%	0.00	13148	11412	87%	2.3
Adjoin the Networks	2461	648	26%	0.00	556	444	80%	5.6
Ads	798	75	9%	0.00	141	51	36%	5.7
Adventures in Moving -- Part IV	1745	386	22%	0.00	329	273	83%	4.5
A Favourable Ending	1881	515	27%	0.00	482	377	78%	4.3
A Feast For Cats	3254	1226	38%	0.00	876	753	86%	3.5
Air Conditioned Minions	6553	1913	29%	0.00	1977	1524	77%	2.9
Airport Logistics	70	18	26%	0.00	24	17	71%	6.9
Akcija	9252	4239	46%	0.00	3822	3425	90%	1.9
Alex and Barb	980	344	35%	0.00	390	307	79%	3.2
Alien Numbers	2831	1487	53%	0.00	1455	1332	92%	1.8
A List Game	10354	3155	30%	0.00	3006	2556	85%	2.5
All about that base	3237	1291	40%	0.00	1241	1050	85%	2.9
All Different Directions	1631	750	46%	0.00	711	634	89%	2.5
Allergy Test	633	158	25%	0.00	203	99	49%	8.0
All Friends	1133	214	19%	0.00	200	105	52%	8.8
All Kill	69	56	81%	0.00	41	35	85%	3.3
Alloys	731	262	36%	0.00	266	226	85%	3.7
All Pairs Shortest Path	13149	2478	19%	0.00	1575	1133	72%	5.5
Almost Perfect	11632	2648	23%	0.00	2740	2171	79%	3.4
Alphabet	2442	1248	51%	0.00	1176	1002	85%	2.9
Alphabet Animals	3439	1008	29%	0.00	936	763	82%	3.4
Alphabet Spam	10175	6332	62%	0.00	5335	5129	96%	1.3
Alternating Current	666	650	98%	0.00	109	107	98%	1.3 - 7.9
Alternative Anagram	242	78	32%	0.00	68	52	76%	7.1
Alternative Bracket Notation	220	94	43%	0.00	103	84	82%	5.3
Amsterdam Distance	2181	1076	49%	0.00	1092	934	86%	2.6
A Multiplication Game	1186	481	41%	0.00	514	400	78%	4.0
Anagram Counting	4523	1810	40%	0.00	1746	1472	84%	2.7
A New Adventure	1377	208	15%	0.00	216	151	70%	5.9
A New Alphabet	13132	5937	45%	0.00	5522	5109	93%	1.6
An I for an Eye	1158	326	28%	0.00	380	281	74%	4.7
Another Brick in the Wall	4068	2064	51%	0.00	2007	1834	91%	1.9
Another Candies	9623	2677	28%	0.00	2715	2274	84%	2.5
Another Coin Weighing Puzzle	527	149	28%	0.00	131	105	80%	6.3
Another Dice Game	117	76	65%	0.00	74	64	86%	4.2
Antenna Placement	189	79	42%	0.00	67	48	72%	7.8
Anthony and Cora	1124	293	26%	0.00	338	231	68%	5.7
Anthony and Diablo	4101	1501	37%	0.00	1522	1323	87%	2.5
Ants	4602	2104	46%	0.00	1719	1513	88%	2.4
Apaxiaaaaaaaaaaaans!	16327	9758	60%	0.00	8713	8318	95%	1.4
Apostrophe Catastrophe	144	37	26%	0.00	37	25	68%	6.5
Appalling Architecture	883	258	29%	0.00	230	190	83%	4.2
A Prize No One Can Win	5938	1829	31%	0.00	1501	1321	88%	2.4
Aquarium Tank	577	164	28%	0.00	158	123	78%	6.0
A Question of Ingestion	2099	488	23%	0.00	443	340	77%	5.5
A Random Problem	371	92	25%	0.00	88	61	69%	6.9
A Rational Sequence	1995	677	34%	0.00	726	531	73%	5.1
A Rational Sequence 2	2641	1955	74%	0.00	1729	1664	96%	1.5
A Rational Sequence (Take 3)	1205	972	81%	0.00	819	784	96%	1.7
Archimedes	31	5	16%	0.00	5	4	80%	5.7
Architecture	230	125	54%	0.00	131	119	91%	3.2
Arctic Network	2607	932	36%	0.00	707	583	82%	4.2
A Real Challenge	10594	5185	49%	0.00	4905	4609	94%	1.5
Are You Listening?	2568	824	32%	0.00	785	708	90%	2.5
Arithmetic	3700	1119	30%	0.00	1147	909	79%	3.5
Arithmetic Decoding	109	69	63%	0.00	56	51	91%	2.9
Army Strength (Easy)	4222	2149	51%	0.00	2008	1808	90%	2.2
Around and Around We Go	59	16	27%	0.00	27	15	56%	7.2
Around the Track	300	38	13%	0.00	60	28	47%	9.2
Arrangement	476	419	88%	0.00	356	353	99%	1.3 - 1.8
Array of Discord	3090	621	20%	0.00	563	403	72%	5.0
ASCII Addition	1502	870	58%	0.00	777	735	95%	1.8
ASCII Figure Rotation	2370	781	33%	0.00	807	684	85%	3.2
As Easy as CAB	1274	119	9%	0.00	277	92	33%	9.1
Aspen Avenue	2263	633	28%	0.00	423	283	67%	6.1
Association for Computing Machinery	2885	1105	38%	0.00	988	873	88%	2.6
Association for Cool Machineries (Part 2)	47	28	60%	0.00	32	25	78%	5.6
Association for the Country of Mububa	1992	406	20%	0.00	456	287	63%	7.2
Association of Myths	62	30	48%	0.00	36	28	78%	7.0
A Star not a Tree?	248	76	31%	0.00	62	44	71%	5.6
Asteroids	730	134	18%	0.00	105	75	71%	7.2
Astro	567	186	33%	0.00	180	153	85%	4.1
Astrological Sign	1033	445	43%	0.00	447	397	89%	1.7
A Towering Problem	2707	1318	49%	0.00	1324	1195	90%	2.1
Autori	27268	17174	63%	0.00	15398	14919	97%	1.2
Average Speed	1443	491	34%	0.00	493	411	83%	3.3
A Vicious Pikeman (Easy)	3015	1001	33%	0.00	775	681	88%	3.1
Avion	4301	2426	56%	0.00	2327	2237	96%	1.3
Baby Bites	4781	2467	52%	0.00	2343	2191	94%	1.6
Babylonian Numbers	1575	837	53%	0.00	835	751	90%	2.0
Backspace	14021	5265	38%	0.00	4031	3440	85%	2.4
Bacon, Eggs, and Spam	4678	2663	57%	0.00	2341	2180	93%	1.7
Baggage	345	117	34%	0.00	139	99	71%	5.5