Problems by Richard Peng

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Colliding Traffic	225	42	19%	0.01	34	27	79%	5.8
Ocean Currents	347	143	41%	0.17	109	97	89%	5.6
Scrolling Sign	449	221	49%	0.00	211	192	91%	3.0
Unique Snowflakes	2134	547	26%	0.02	434	348	80%	4.4
Zerg Rush!!!	101	12	12%	0.28	15	10	67%	7.5