I need help solving this problem using the ML programming language Write a function min3 of...

Question

Question

I need help solving this problem using the ML programming language

Write a function min3 of type int * int * int -> int that returns the smallest of three integers.

Answer 1

Answer #1

The idea of finding min3 is by dividing it into min2.

for example.

Consider, if first number be smaller than second , then apply min2 of (first and third).

If first number is not smaller than second, then apply min2 of (second and third)

We have argument type as a 3-tuple.

It can be done in 2 ways.

Here, finding min3 of 3 Using a projection:

fun min3(t:int*int*int) = if (#1t < #2t) then if (#1t < #3t) then #1t else #3t else if (#2t < #3t ) then #2t else #3t;

Here, finding min3 Using a local declaration:

fun min3(t:int*int*int) = let val (a,b,c)=t in if (a<b) then if (a<c) then a else c else if (b<c) then b else c end;

OUTPUT:

**Thank You.**

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Answer 2

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