Problem Statement

Write a program to find the mode value of a collection. The case where the collection is empty may be ignored. Care must be taken to handle the case where the mode is non-unique. If it is not appropriate or possible to support a general collection, use a vector (array), if possible. If it is not appropriate or possible to support an unspecified value type, use integers.

Let's start with the solution:

#import std

mode = ~&hS+ leql$^&h+ eql|=@K2

#cast %nLW

examples = mode~~ (<1,3,6,6,6,7,7,12,12,17>,<1,1,2,4,4>)