Problems by William Zhao – Kattis, Kattis

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Counting Staircases	0.04	265	96	74	77%	4.8Medium	en
Hatter's Hat Shop	0.15	1279	34	18	53%	7.6Hard	en
Metro Mapping	0.08	847	100	78	78%	6.8Hard	en
Mid Card	0.57	1490	64	48	75%	8.1Hard	en
OK Maps	0.00	148	67	46	69%	6.2Hard	en