Round 1B: Noisy Neighbors

2315 correct small sets and 556 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (2078 sets)
Java (335 sets)
Python (278 sets)
C# (54 sets)
C (23 sets)
Ruby (21 sets)
Haskell (18 sets)
MATLAB (7 sets)
OCaml (7 sets)
D (6 sets)
Go (6 sets)
Pascal (6 sets)
Lisp (4 sets)
Perl (4 sets)
PHP (4 sets)
Scala (4 sets)
Clojure (2 sets)
Groovy (2 sets)
JavaScript (2 sets)
Objective-C (2 sets)
ActionScript (1 set)
Factor (1 set)
Julia (1 set)
Rust (1 set)
Visual Basic (1 set)

Submission Origin

China (345 contestants)
Russia (258 contestants)
India (246 contestants)
United States (163 contestants)
Japan (128 contestants)
Ukraine (85 contestants)
Poland (67 contestants)
South Korea (62 contestants)
Taiwan (59 contestants)
Bangladesh (44 contestants)
Canada (43 contestants)
Romania (42 contestants)
Egypt (41 contestants)
Vietnam (40 contestants)
Belarus (39 contestants)
France (37 contestants)
Brazil (36 contestants)
Germany (31 contestants)
Thailand (29 contestants)
Slovakia (26 contestants)
Iran (25 contestants)
United Kingdom (24 contestants)
Netherlands (21 contestants)
Indonesia (19 contestants)
Singapore (19 contestants)
Australia (18 contestants)
Hong Kong (16 contestants)
Hungary (16 contestants)
Croatia (15 contestants)
Czech Republic (15 contestants)
Israel (15 contestants)
Italy (15 contestants)
Argentina (14 contestants)
Spain (13 contestants)
Sweden (13 contestants)
Turkey (13 contestants)
Belgium (11 contestants)
Bulgaria (11 contestants)
South Africa (11 contestants)
Greece (10 contestants)
Colombia (9 contestants)
Kazakhstan (9 contestants)
Slovenia (9 contestants)
Lithuania (8 contestants)
Portugal (8 contestants)
Georgia (7 contestants)
Latvia (7 contestants)
Mexico (7 contestants)
Armenia (6 contestants)
Austria (6 contestants)
Peru (6 contestants)
Philippines (6 contestants)
Switzerland (6 contestants)
Bolivia (5 contestants)
Denmark (5 contestants)
Lebanon (5 contestants)
Moldova (5 contestants)
Norway (5 contestants)
Uzbekistan (5 contestants)
Venezuela (5 contestants)
New Zealand (4 contestants)
Serbia (4 contestants)
Dominican Republic (3 contestants)
Finland (3 contestants)
Jordan (3 contestants)
Turkmenistan (3 contestants)
Bosnia and Herzegovina (2 contestants)
Chile (2 contestants)
Iceland (2 contestants)
Ireland (2 contestants)
Kyrgyzstan (2 contestants)
Macedonia (2 contestants)
Morocco (2 contestants)
Antarctica (1 contestant)
Antigua and Barbuda (1 contestant)
Azerbaijan (1 contestant)
Cuba (1 contestant)
Cyprus (1 contestant)
Estonia (1 contestant)
Malta (1 contestant)
Mongolia (1 contestant)
Myanmar (1 contestant)
Nepal (1 contestant)
Palestine (1 contestant)
Saudi Arabia (1 contestant)
Sri Lanka (1 contestant)
Tajikistan (1 contestant)
U.S. Virgin Islands (1 contestant)
Unknown or Invalid Region (1 contestant)
Uruguay (1 contestant)