Range - count
examples/range/count.cr
res = (1..10).count { |ix| sprintf("%b", ix) == sprintf("%b", ix).reverse } puts res # puts (1..10).map{|ix| sprintf("%b", ix) == sprintf("%b", ix).reverse; sprintf("%b", ix) }
res = (1..10).count { |ix| sprintf("%b", ix) == sprintf("%b", ix).reverse } puts res # puts (1..10).map{|ix| sprintf("%b", ix) == sprintf("%b", ix).reverse; sprintf("%b", ix) }