Louise Rains wrote:
> q.inject(Array.new(4,0)){ |h,e| if e < 10000 then h[Math.log10(e).to_i]
> +=1 }

You need an "end" to go with the "if .. then .. " :

q.inject(Array.new(4,0)){ |h,e| if e < 10000 then h[Math.log10(e).to_i] 
+=1; end }