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 (409 solutions by 138 contestants):
Round 1A (19 solutions by 15 contestants):
Round 1B (23 solutions by 14 contestants):
Round 1C (30 solutions by 16 contestants):
Round 2 (2 solutions by 2 contestants):

Submission Origin

United States (32 contestants)
Australia (6 contestants)
India (6 contestants)
Spain (6 contestants)
China (5 contestants)
Brazil (4 contestants)
France (4 contestants)
Germany (4 contestants)
Japan (4 contestants)
United Kingdom (4 contestants)
Argentina (3 contestants)
Canada (3 contestants)
Hong Kong (3 contestants)
Hungary (3 contestants)
Latvia (3 contestants)
Poland (3 contestants)
Portugal (3 contestants)
Taiwan (3 contestants)
Thailand (3 contestants)
Belarus (2 contestants)
Czech Republic (2 contestants)
Lithuania (2 contestants)
Netherlands (2 contestants)
New Zealand (2 contestants)
Russia (2 contestants)
Singapore (2 contestants)
South Korea (2 contestants)
Turkey (2 contestants)
Andorra (1 contestant)
Chile (1 contestant)
Denmark (1 contestant)
Egypt (1 contestant)
Indonesia (1 contestant)
Iran (1 contestant)
Israel (1 contestant)
Italy (1 contestant)
Jamaica (1 contestant)
Kazakhstan (1 contestant)
Kenya (1 contestant)
Luxembourg (1 contestant)
Mexico (1 contestant)
Philippines (1 contestant)
Romania (1 contestant)
Serbia (1 contestant)
Slovakia (1 contestant)
South Africa (1 contestant)
Sweden (1 contestant)
Switzerland (1 contestant)
Tunisia (1 contestant)
Ukraine (1 contestant)