Problems by Piotr Rudnicki

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A Flea on a Chessboard	1076	225	21%	0.01	226	160	71%	5.5
Antiarithmetic?	2316	435	19%	0.01	509	285	56%	7.8
Ants	5621	2630	47%	0.00	2059	1828	89%	2.3
Bachet's Game	4512	1955	43%	0.04	1300	1173	90%	3.3
Basic Remains	1185	556	47%	0.01	489	442	90%	3.1
Brownie Points I	705	429	61%	0.02	378	355	94%	2.2
Brownie Points II	52	13	25%	0.11	17	9	53%	7.5
Closest Sums	7617	2786	37%	0.00	2292	1998	87%	2.7
Cutting a polygon	305	46	15%	0.00	60	33	55%	8.8
Ferry Loading IV	4094	1409	34%	0.00	1396	1093	78%	2.9
Grid Speed	83	11	13%	0.04	12	7	58%	6.8
How many 0's?	1342	623	46%	0.00	561	434	77%	3.9
Knights in Fen	2912	1021	35%	0.00	565	484	86%	3.5
Magic Bitstrings	140	59	42%	0.00	56	46	82%	6.3
Marbles On A Tree	1936	749	39%	0.00	554	501	90%	3.0
Persistent Numbers	1139	437	38%	0.02	366	301	82%	4.0
Rectilinear Polygon	62	27	44%	0.01	28	22	79%	5.2
Three Powers	3217	1548	48%	0.00	1268	1171	92%	2.3
Tri Tiling	2390	1043	44%	0.00	891	804	90%	2.5
Watering Grass	5782	1281	22%	0.02	880	680	77%	4.8