Problems from Southwestern Europe Regional Contest (SWERC) 2011

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Distributing Ballot Boxes	0.04	192	11345	2984	26%	3.8Medium	en
Guess the Numbers	0.01	357	870	199	23%	8.0Hard	en
Non-negative Partial Sums	0.04	420	554	159	29%	6.8Hard	en
Remoteland	0.18	644	208	96	46%	4.6Medium	en