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I never heard of hackerrank until now. Maybe the site has a location bias? Interesting bit, when I used to have ad-sense for my tumblr app certain regions just

I never heard of hackerrank until now. Maybe the site has a location bias? Interesting bit, when I used to have ad-sense for my tumblr app certain regions just visited more of that site than others

PedroBatista 10y ago
That's the purpose of the whole article.