Loading collection data...
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.
This comment is hidden because it contains spoiler information about the solution
I think so. Otherwise, that would be an integer division and the result would be incorrect.
1e6 is the computer notation for 10^6 = 1,000,000.
So, multiplying a number by 1e6, then rounding it (with int) and dividing it by 1e6, has the effect of rounding it to 6 decimals.