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 (465 solutions by 152 contestants):
Round 1A (13 solutions by 9 contestants):
Round 1B (38 solutions by 21 contestants):
Round 1C (25 solutions by 14 contestants):
Round 2 (16 solutions by 6 contestants):

Submission Origin

United States (32 contestants)
India (11 contestants)
France (8 contestants)
Spain (7 contestants)
China (6 contestants)
Germany (6 contestants)
United Kingdom (6 contestants)
Canada (5 contestants)
Argentina (4 contestants)
Australia (4 contestants)
Brazil (4 contestants)
Hungary (4 contestants)
Pakistan (4 contestants)
South Korea (4 contestants)
Czech Republic (3 contestants)
Finland (3 contestants)
Hong Kong (3 contestants)
Japan (3 contestants)
Latvia (3 contestants)
Taiwan (3 contestants)
Chile (2 contestants)
Indonesia (2 contestants)
Romania (2 contestants)
Russia (2 contestants)
Ukraine (2 contestants)
Bangladesh (1 contestant)
Belarus (1 contestant)
Belgium (1 contestant)
Brunei (1 contestant)
Estonia (1 contestant)
Ethiopia (1 contestant)
Iran (1 contestant)
Israel (1 contestant)
Italy (1 contestant)
Lebanon (1 contestant)
Moldova (1 contestant)
Monaco (1 contestant)
Morocco (1 contestant)
New Zealand (1 contestant)
Philippines (1 contestant)
Poland (1 contestant)
Portugal (1 contestant)
Singapore (1 contestant)
Slovakia (1 contestant)
South Africa (1 contestant)
Sweden (1 contestant)
Switzerland (1 contestant)
Thailand (1 contestant)
Vietnam (1 contestant)