Question: F# Exercise 2.5 Write a function implode : char list -> string implode [a;b;c] = abc Hint: Use List.foldBack. Now write a function implodeRev :

Exercise 2.5 Write a function implode : char list -> string implode [a;b;c] = "abc" Hint: Use List.foldBack. Now write a function implodeRev : char list -> string so that implodeRev s returns the characters concatenated in reverse order into a string: implodeRev [a;b;c] = "cba" Hint: Use List.fold.

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