Interview question of the issue #331 of rendezvous with cassidoo.
Write a function that determines if an array of numbers is a bitonic sequence. A bitonic sequence is a sequence of numbers in which the numbers are in increasing order, and after a certain point, they start decreasing. Extra credit: print the peak number in the sequence!
Example:
> isBitonic([1,2,3,2])
> true // extra credit: 3
> isBitonic([1,2,3])
> false
> isBitonic([3,4,5,5,5,2,1])
> true // extra credit: 5Just pnpm i to install all dependencies and then pnpm t to run the tests!