Problems from Southwestern Europe Regional Contest (SWERC) 2011

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Distributing Ballot Boxes	0.03	181	2467	2028	82%	3.3Medium	en
Guess the Numbers	0.01	198	253	138	55%	7.4Hard	en
Non-negative Partial Sums	0.04	307	176	114	65%	6.6Hard	en
Remoteland	0.13	644	83	64	77%	5.0Medium	en