hello does anyone know how to check if a number is already on an array?

Google binary search on solidity

Ok thank a lot

Binary search works only on sorted arrays

Yep, forgot to mention

Ok i will keep it mind ty again

You can find some code example of keeping array sorted with binary search algorithm on Solidity in my example repo
https://github.com/Norfolks/farm-dag

Thank you a lot this is exactly what i was looking for and could find the solutiion maybe i was missing the "word" binary also 👌👌