sort
Sort the array according to scores, and return the sorted indexes of previous unsorted nodes (unchecked nodes)
Return
indexes of newly sorted (unchecked) nodes, in ascending order, or null if the array is already fully sorted
Sort the array according to scores, and return the sorted indexes of previous unsorted nodes (unchecked nodes)
indexes of newly sorted (unchecked) nodes, in ascending order, or null if the array is already fully sorted