Problems by Piotr Rudnicki

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A Flea on a Chessboard	770	145	19%	0.01	166	114	69%	5.6
Antiarithmetic?	1787	317	18%	0.01	402	226	56%	7.4
Ants	4190	1872	45%	0.00	1516	1327	88%	2.6
Bachet's Game	3227	1517	47%	0.07	985	901	91%	2.5
Basic Remains	698	327	47%	0.01	281	251	89%	3.3
Brownie Points I	399	242	61%	0.02	218	203	93%	2.3
Brownie Points II	44	9	20%	0.11	13	6	46%	7.6
Closest Sums	5192	1909	37%	0.00	1540	1342	87%	2.9
Cutting a polygon	294	43	15%	0.00	53	30	57%	8.7
Ferry Loading IV	3376	1051	31%	0.00	1066	802	75%	3.3
Grid Speed	19	4	21%	0.04	7	4	57%	6.9
How many 0's?	1099	507	46%	0.00	455	353	78%	4.4
Knights in Fen	2642	928	35%	0.00	484	418	86%	3.3
Magic Bitstrings	108	51	47%	0.00	45	39	87%	3.9
Marbles On A Tree	1353	546	40%	0.00	389	349	90%	3.0
Persistent Numbers	803	346	43%	0.02	266	223	84%	3.8
Rectilinear Polygon	48	19	40%	0.01	20	16	80%	5.5
Three Powers	2312	1119	48%	0.00	900	826	92%	2.5
Tri Tiling	1752	736	42%	0.00	624	572	92%	2.3
Watering Grass	3859	799	21%	0.02	569	432	76%	5.2