puts "Hello World from Ruby selection Sort!" def selectionSort(arr) for k in 0...(arr.length- 1) min = k for j in (k+1)...arr.length min=j if arr[j]<arr[min] end arr[k], arr[min] = arr[min], arr[k] end end nums = [8,45, 67,90,4,67,89] selectionSort(nums) p nums