Problems by Piotr Rudnicki

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A Flea on a Chessboard	1023	214	21%	0.01	212	151	71%	5.3
Antiarithmetic?	2177	418	19%	0.01	474	270	57%	7.6
Ants	5234	2411	46%	0.00	1910	1686	88%	2.4
Bachet's Game	4196	1820	43%	0.04	1199	1086	91%	3.3
Basic Remains	1055	477	45%	0.01	424	379	89%	3.3
Brownie Points I	599	352	59%	0.02	312	292	94%	2.3
Brownie Points II	51	13	25%	0.11	16	9	56%	7.4
Closest Sums	6619	2436	37%	0.00	1967	1704	87%	3.2
Cutting a polygon	303	46	15%	0.00	58	33	57%	8.8
Ferry Loading IV	3765	1258	33%	0.00	1254	971	77%	3.1
Grid Speed	23	5	22%	0.04	9	5	56%	7.5
How many 0's?	1254	568	45%	0.00	523	401	77%	4.6
Knights in Fen	2810	978	35%	0.00	529	452	85%	3.6
Magic Bitstrings	138	58	42%	0.00	54	45	83%	6.1
Marbles On A Tree	1763	683	39%	0.00	501	452	90%	3.0
Persistent Numbers	1062	416	39%	0.02	340	282	83%	3.9
Rectilinear Polygon	61	27	44%	0.01	27	22	81%	5.1
Three Powers	2945	1428	48%	0.00	1165	1081	93%	2.2
Tri Tiling	2269	995	44%	0.00	845	764	90%	2.4
Watering Grass	4958	1073	22%	0.02	774	585	76%	5.4