Language Details: JavaScript

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JavaScript is a prototype-based scripting language that is dynamic, weakly typed, and has first-class functions.

JavaScript article on Wikipedia

Problems solved

Qualification Round (915 solutions by 259 contestants):
Round 1A (55 solutions by 26 contestants):
Round 1B (136 solutions by 61 contestants):
Round 1C (45 solutions by 20 contestants):
Round 2 (4 solutions by 2 contestants):

Submission Origin

United States (49 contestants)
France (21 contestants)
India (16 contestants)
Canada (12 contestants)
Germany (9 contestants)
South Korea (8 contestants)
China (7 contestants)
New Zealand (7 contestants)
Taiwan (7 contestants)
Ukraine (7 contestants)
United Kingdom (7 contestants)
Brazil (6 contestants)
Hong Kong (6 contestants)
Thailand (6 contestants)
Australia (5 contestants)
Japan (5 contestants)
Poland (5 contestants)
Israel (4 contestants)
Italy (4 contestants)
Slovakia (4 contestants)
Switzerland (4 contestants)
Moldova (3 contestants)
Netherlands (3 contestants)
Portugal (3 contestants)
Russia (3 contestants)
South Africa (3 contestants)
Spain (3 contestants)
Tunisia (3 contestants)
Turkey (3 contestants)
Colombia (2 contestants)
Egypt (2 contestants)
Hungary (2 contestants)
Indonesia (2 contestants)
Iran (2 contestants)
Latvia (2 contestants)
Morocco (2 contestants)
Nigeria (2 contestants)
Romania (2 contestants)
Singapore (2 contestants)
Vietnam (2 contestants)
Armenia (1 contestant)
Austria (1 contestant)
Belarus (1 contestant)
Belgium (1 contestant)
Bulgaria (1 contestant)
Denmark (1 contestant)
Dominican Republic (1 contestant)
Finland (1 contestant)
Greece (1 contestant)
Kosovo (1 contestant)
Lithuania (1 contestant)
Madagascar (1 contestant)
Malaysia (1 contestant)
Mexico (1 contestant)
Pakistan (1 contestant)
Sri Lanka (1 contestant)
Sweden (1 contestant)
Venezuela (1 contestant)