Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	11504	1813	16%	0.00	2358	1251	53%	5.9
2048	10599	4860	46%	0.00	4709	4021	85%	2.5
3D Printed Statues	14155	6508	46%	0.00	6097	5457	90%	2.1
3D Printer	983	161	16%	0.00	407	123	30%	8.9
3-Sided Dice	2888	237	8%	0.00	474	165	35%	8.7
4 thought	12204	4229	35%	0.00	4060	3426	84%	2.7
A1 Paper	6648	2012	30%	0.00	2001	1588	79%	3.8
Aaah!	35616	16622	47%	0.00	14971	13973	93%	1.5
ABC	19648	8888	45%	0.00	8448	7652	91%	2.0
Above Average	12745	5320	42%	0.00	5124	4612	90%	1.8
Abstract Art	455	150	33%	0.00	124	92	74%	6.0
Abstract Painting	1083	438	40%	0.00	388	317	82%	3.9
Absurdistan Roads II	702	236	34%	0.00	235	156	66%	7.0
ACM Contest Scoring	8406	5266	63%	0.00	4696	4445	95%	1.5
Adding Words	14249	3526	25%	0.00	3301	2588	78%	3.8
Add Two Numbers	2000	1474	74%	0.00	1407	1369	97%	1.2
A Different List Game	7505	524	7%	0.00	985	192	19%	9.3
A Different Problem	40105	14883	37%	0.00	13594	11782	87%	2.5
Adjoin the Networks	2651	689	26%	0.00	588	470	80%	5.6
Ads	825	77	9%	0.00	151	52	34%	6.0
Adventures in Moving -- Part IV	1776	395	22%	0.00	342	282	82%	4.8
A Favourable Ending	1926	530	28%	0.00	492	385	78%	4.4
A Feast For Cats	3394	1283	38%	0.00	928	801	86%	3.4
Air Conditioned Minions	6927	2041	29%	0.00	2097	1629	78%	3.3
Airport Logistics	70	18	26%	0.00	24	17	71%	6.9
Akcija	9685	4476	46%	0.00	4012	3593	90%	1.9
Alex and Barb	1145	395	34%	0.00	457	356	78%	3.5
Alien Microwave	236	94	40%	0.00	123	90	73%	6.5
Alien Numbers	2930	1541	53%	0.00	1512	1383	91%	1.9
A List Game	10811	3289	30%	0.00	3156	2671	85%	2.9
All about that base	3288	1315	40%	0.00	1266	1072	85%	3.0
All Different Directions	1686	782	46%	0.00	743	664	89%	2.5
Allergy Test	640	161	25%	0.00	207	101	49%	8.0
All Friends	1153	218	19%	0.00	206	108	52%	8.8
All Kill	97	80	82%	0.00	53	46	87%	3.0
Alloys	825	302	37%	0.00	310	261	84%	3.7
All Pairs Shortest Path	13677	2627	19%	0.00	1654	1190	72%	5.6
Almost Perfect	12961	2949	23%	0.00	3013	2397	80%	3.1
Alphabet	2602	1344	52%	0.00	1274	1086	85%	2.9
Alphabet Animals	3587	1049	29%	0.00	973	794	82%	3.5
Alphabet Spam	10630	6659	63%	0.00	5637	5424	96%	1.3
Alternating Current	689	671	97%	0.00	117	114	97%	1.3 - 7.9
Alternative Anagram	257	82	32%	0.00	74	54	73%	7.8
Alternative Bracket Notation	235	101	43%	0.00	110	90	82%	5.5
Alto Singing	83	34	41%	0.00	35	32	91%	4.8
Amsterdam Distance	2233	1116	50%	0.00	1129	967	86%	2.6
A Multiplication Game	1268	519	41%	0.00	556	433	78%	4.2
Anagram Counting	4681	1876	40%	0.00	1807	1526	84%	2.7
A New Adventure	1478	225	15%	0.00	220	156	71%	5.8
A New Alphabet	13812	6204	45%	0.00	5815	5341	92%	2.3
An I for an Eye	1276	367	29%	0.00	419	314	75%	4.7
Another Brick in the Wall	4215	2172	52%	0.00	2107	1928	92%	1.9
Another Candies	10177	2851	28%	0.00	2879	2415	84%	2.6
Another Coin Weighing Puzzle	565	159	28%	0.00	137	109	80%	6.4
Another Dice Game	133	81	61%	0.00	81	68	84%	4.4
Antenna Placement	199	82	41%	0.00	71	51	72%	7.8
Anthony and Cora	1241	298	24%	0.00	346	236	68%	5.7
Anthony and Diablo	4279	1571	37%	0.00	1596	1391	87%	2.4
Ants	4874	2226	46%	0.00	1811	1601	88%	2.3
Apaxiaaaaaaaaaaaans!	17497	10521	60%	0.00	9421	8990	95%	1.4
Apostrophe Catastrophe	148	39	26%	0.00	38	26	68%	6.4
Appalling Architecture	887	262	30%	0.00	234	194	83%	4.1
A Prize No One Can Win	6072	1909	31%	0.00	1564	1380	88%	2.3
Aquarium Tank	591	168	28%	0.00	165	126	76%	6.3
A Question of Ingestion	2153	496	23%	0.00	451	346	77%	5.4
A Random Problem	393	101	26%	0.00	91	64	70%	6.8
A Rational Sequence	2056	704	34%	0.00	749	550	73%	5.1
A Rational Sequence 2	2736	2030	74%	0.00	1791	1722	96%	1.5
A Rational Sequence (Take 3)	1265	1019	81%	0.00	862	826	96%	1.7
Archimedes	32	6	19%	0.00	6	5	83%	5.2
Architecture	287	157	55%	0.00	158	144	91%	3.0
Arctic Network	2661	956	36%	0.00	730	602	82%	4.2
A Real Challenge	11005	5402	49%	0.00	5108	4808	94%	1.4
Are You Listening?	2685	872	32%	0.00	827	748	90%	2.5
Arithmetic	3883	1188	31%	0.00	1199	948	79%	3.7
Arithmetic Decoding	141	86	61%	0.00	76	68	89%	3.2
Army Strength (Easy)	4306	2200	51%	0.00	2055	1852	90%	2.2
Around and Around We Go	59	16	27%	0.00	27	15	56%	7.2
Around the Track	301	39	13%	0.00	61	29	48%	9.2
Arrangement	670	573	86%	0.00	508	491	97%	1.3 - 1.8
Array of Discord	3221	651	20%	0.00	583	423	73%	4.8
ASCII Addition	1538	903	59%	0.00	807	764	95%	1.8
ASCII Figure Rotation	2448	817	33%	0.00	843	718	85%	3.1
As Easy as CAB	1347	127	9%	0.00	289	99	34%	9.1
Aspen Avenue	2291	643	28%	0.00	435	289	66%	6.3
Association for Computing Machinery	2925	1120	38%	0.00	1004	885	88%	2.7
Association for Cool Machineries (Part 2)	47	28	60%	0.00	32	25	78%	5.7
Association for the Country of Mububa	2033	417	21%	0.00	464	295	64%	7.0
Association of Myths	63	30	48%	0.00	37	28	76%	7.6
A Star not a Tree?	252	77	31%	0.00	64	45	70%	5.6
Asteroids	754	134	18%	0.00	106	75	71%	7.6
Astro	610	197	32%	0.00	191	163	85%	4.0
Astrological Sign	1279	547	43%	0.00	553	490	89%	1.8
A Towering Problem	2750	1346	49%	0.00	1353	1221	90%	2.2
Autori	31856	19079	60%	0.00	16703	16043	96%	1.5
Average Speed	1470	502	34%	0.00	507	421	83%	3.5
A Vicious Pikeman (Easy)	3192	1086	34%	0.00	845	747	88%	2.9
Avion	4593	2617	57%	0.00	2505	2408	96%	1.4
Baby Bites	5157	2661	52%	0.00	2504	2346	94%	1.6
Babylonian Numbers	1650	881	53%	0.00	879	791	90%	2.1