Problems by Kai Chen

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Food Carts	0.04	475	245	97	40%	3.6Medium	en
License Renewal	0.00	364	485	144	30%	5.8Hard	en
Long Swaps	0.00	71	1056	455	43%	3.8Medium	en