Round 1C: Center of Mass

823 correct small sets and 737 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (952 sets)
Java (215 sets)
Python (160 sets)
C# (83 sets)
C (42 sets)
Ruby (30 sets)
Pascal (24 sets)
Perl (17 sets)
PHP (15 sets)
MATLAB (4 sets)
Scala (4 sets)
ActionScript (2 sets)
Haskell (2 sets)
Lisp (2 sets)
OCaml (2 sets)
Erlang (1 set)
JavaScript (1 set)

Submission Origin

China (176 contestants)
Russia (99 contestants)
India (67 contestants)
United States (59 contestants)
Japan (48 contestants)
Ukraine (37 contestants)
Poland (29 contestants)
Australia (20 contestants)
Brazil (18 contestants)
South Korea (17 contestants)
United Kingdom (15 contestants)
Belarus (14 contestants)
Hungary (14 contestants)
Italy (11 contestants)
Hong Kong (10 contestants)
Romania (10 contestants)
Spain (10 contestants)
Bulgaria (9 contestants)
Canada (9 contestants)
Germany (9 contestants)
Netherlands (8 contestants)
South Africa (8 contestants)
Taiwan (8 contestants)
Croatia (7 contestants)
Singapore (7 contestants)
France (6 contestants)
Georgia (6 contestants)
Sweden (6 contestants)
Thailand (6 contestants)
Vietnam (6 contestants)
New Zealand (5 contestants)
Bangladesh (4 contestants)
Finland (4 contestants)
Israel (4 contestants)
Slovakia (4 contestants)
Turkey (4 contestants)
Armenia (3 contestants)
Belgium (3 contestants)
Colombia (3 contestants)
Czech Republic (3 contestants)
Egypt (3 contestants)
Indonesia (3 contestants)
Kazakhstan (3 contestants)
Lebanon (3 contestants)
Peru (3 contestants)
Portugal (3 contestants)
Argentina (2 contestants)
Denmark (2 contestants)
Jordan (2 contestants)
Latvia (2 contestants)
Lithuania (2 contestants)
Mexico (2 contestants)
Serbia (2 contestants)
Switzerland (2 contestants)
Austria (1 contestant)
Namibia (1 contestant)
Philippines (1 contestant)
Slovenia (1 contestant)
Venezuela (1 contestant)