Practice question from Higher-Order Functions

Complete the code to find the maximum value:

let numbers = [3; 7; 2; 9; 1]
let max = List.____ (fun ____ x -> if x > ____ then x else ____) numbers.[0] numbers

Answer

["fold","acc"]

Explanation

List.fold processes each element with an accumulator. The folder function compares each element x with the accumulator acc, keeping the larger value. It starts with numbers.[0] as the initial accumulator.

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