Test = Struct.new(:limits, :data) tests = Test.new( [23, 37, 43, 53, 67, 83], [95,21,94,12,99,4,70,75,83,93,52,80,57,5,53,86,65,17,92,83,71,61,54,58,47, 16, 8, 9,32,84,7,87,46,19,30,37,96,6,98,40,79,97,45,64,60,29,49,36,43,55]), Test.new( [14, 18, 249, 312, 389, 392, 513, 591, 634, 720], [445,814,519,697,700,130,255,889,481,122,932, 77,323,525,570,219,367,523,442,933, 416,589,930,373,202,253,775, 47,731,685,293,126,133,450,545,100,741,583,763,306, 655,267,248,477,549,238, 62,678, 98,534,622,907,406,714,184,391,913, 42,560,247, 346,860, 56,138,546, 38,985,948, 58,213,799,319,390,634,458,945,733,507,916,123, 345,110,720,917,313,845,426, 9,457,628,410,723,354,895,881,953,677,137,397, 97, 854,740, 83,216,421, 94,517,479,292,963,376,981,480, 39,257,272,157, 5,316,395, 787,942,456,242,759,898,576, 67,298,425,894,435,831,241,989,614,987,770,384,692, 698,765,331,487,251,600,879,342,982,527,736,795,585, 40, 54,901,408,359,577,237, 605,847,353,968,832,205,838,427,876,959,686,646,835,127,621,892,443,198,988,791, 466, 23,707,467, 33,670,921,180,991,396,160,436,717,918, 8,374,101,684,727,749]) def bin(limits, data) data.map{|d| limits.bsearch{|limit| limit > d} }.tally end def present_bins(limits, bins) ranges = ([nil]+limits+[nil]).each_cons(2).map{|low, high| Range.new(low, high, true) } ranges.each{|range| puts "#{range.to_s.ljust(12)} #{bins[range.end].to_i}"} end tests.each do |test| present_bins(test.limits, bin(test.limits, test.data)) puts end