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Or should i prefer to use Ranges instead of arrays?
There is no short answer to this question. Arrays and lazy ranges have different qualities, so they are better for different situations. Arrays use more memory, but in some situations they are faster. Lazy ranges can be a little more complex to use. Often I use ranges where I can, and arrays in the other cases, or where I have to modify the array items many times.
Bye, bearophile
