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Choose a random problem from problemset on Codeforces. Codeforces Problem Picker is a Chrome extension that helps you pick a random problem from the Problemset page on Codeforces. A small "Pick One" button appears at the top right of the problems table. When clicked, it opens a random problem from the current list in a new tab.
rating_count is the Chrome Web Store ratings count, not a written-review count.