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Ruthenium 2019

Start date: Nov. 23, 2019, 5 p.m. UTC

The Ruthenium Challenge is here, hosted by Codility.

Here at Codility, we help companies grow their dev teams by assessing their candidates' technical skills online. We're growing our team too - so if you're interested in helping us refactor tech recruiting, check out our open positions.

Good luck solving this Challenge!

Check our openings


2321 started 32 silver awards 114 golden awards

Hall of fame:

Neal Wu
Time: 8 minutes
Kerim Kochekov
Time: 20 minutes
乐平 汪
Time: 21 minutes