def x(mark) possible_results = ['','Failed', 'Failed', 'Summer school', 'Approved'] index = (mark + 1).to_s(2).length possible_results[index] end for i in 0..10 puts i.to_s + ' ' + x(i) end
Standard input is empty
0 Failed 1 Failed 2 Failed 3 Summer school 4 Summer school 5 Summer school 6 Summer school 7 Approved 8 Approved 9 Approved 10 Approved