Problems by Andreas Björklund

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Allergy Test	631	157	25%	0.00	202	98	49%	8.1
Altruistic Amphibians	520	139	27%	0.22	114	85	75%	5.1
Aspen Avenue	2263	633	28%	0.00	423	283	67%	6.1
Best Compromise	824	566	69%	0.00	539	505	94%	2.0
Boiling Vegetables	1424	569	40%	0.00	514	427	83%	3.7
Bread Sorting	1155	423	37%	0.01	449	341	76%	4.5
Circle of Debt	86	24	28%	0.01	26	18	69%	6.4
Code Cleanups	2084	768	37%	0.00	714	636	89%	2.4
Cuckoo Hashing	840	211	25%	0.01	147	110	75%	6.3
Dinner	103	18	17%	0.02	23	15	65%	7.7
Doorman	2864	1491	52%	0.00	1458	1309	90%	2.2
Highest Tower	356	114	32%	0.21	132	95	72%	6.6
Infiltration	140	43	31%	0.00	49	34	69%	6.9
Kindergarten	174	70	40%	0.00	71	48	68%	7.5
Lights Out	183	69	38%	0.15	36	29	81%	7.5
Necklace Decomposition	288	163	57%	0.00	114	97	85%	4.1
Nested Dolls	1452	327	23%	0.06	283	173	61%	6.8
Polyomino Powers	26	15	58%	0.01	14	12	86%	4.9
Quadratic Residues	387	75	19%	0.00	67	55	82%	4.9
Soda Slurper	5787	3430	59%	0.00	3391	3174	94%	1.5
The Bookcase	83	4	5%	0.31	33	4	12%	8.9