Problem Statement

Write a program to find the sum of squares of a numeric vector. The program should work on a zero-length vector (with an answer of   0).

Let's start with the solution:

{def sumsq
 {lambda {:s}
  {+ {S.map {lambda {:i} {* :i :i}} :s}}}}
-> sumsq

{sumsq 1 2 3 4 5}
-> 55
{sumsq 0}
-> 0