Problems by Kai Chen

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Food Carts	0.04	475	68	57	84%	3.8Medium	en
License Renewal	0.00	364	180	127	71%	5.7Hard	en
Long Swaps	0.00	71	443	375	85%	3.7Medium	en