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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.
took a minute for me to understand but very efficient and nice solution
Consider skipping
== trueinif is_even(n) == true {https://pkg.go.dev/builtin#append
append functions returns an array so
arrnew = append(arrnew, arrzero...) return arrnewcan be simplified to
return append(arrnew, arrzero...)