You'll find the same countries consistently at the top: Russia, Poland, Belarus, Ukraine (i.e. Eastern Europe) and China, Japan (i.e. East Asia) as well as a few others. No news here.
Regarding "but if you go to the last page, there are a bunch of them trying", this is also a function of how many "bad programmers" participate. There's no way to tell whether bad Polish or US programmers filter themselves out of these competitions but Indians not so much.
You'll find the same countries consistently at the top: Russia, Poland, Belarus, Ukraine (i.e. Eastern Europe) and China, Japan (i.e. East Asia) as well as a few others. No news here.
Regarding "but if you go to the last page, there are a bunch of them trying", this is also a function of how many "bad programmers" participate. There's no way to tell whether bad Polish or US programmers filter themselves out of these competitions but Indians not so much.