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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
used Sieve of Eratosthenes but got TLE then after many optimizations also got TLE finally saw your solution great job!!!, learned a lot from your code learned something new happy :Xd
AC in one go cake walk!!
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