Problems from Programmeringsolympiadens onlinekval 2019

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Graduation	0.00	66	1020	844	83%	1.2 - 2.2Easy	en ja sv
House Building	0.10	5072	136	3	2%	1.2 - 9.7Hard	en ja sv
Letter Optimization	0.02	491	228	159	70%	1.3 - 4.8Medium	en ja sv