#!/usr/bin/perl

use strict; # https://rosettacode.org/wiki/Bin_given_limits
use warnings;
use List::MoreUtils qw( upper_bound slide );

for (
{
example => 1,
limits => [23, 37, 43, 53, 67, 83],
data   => [
    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
]
},
{
example => 2,
limits => [14, 18, 249, 312, 389, 392, 513, 591, 634, 720],
data   => [
    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
]
}
)
  {
  print "\nExample $_->{example}:\n";
  my @bins;
  my @limits = @{ $_->{limits} };
  for my $n ( @{ $_->{data} } )
    {
    $bins[ upper_bound { $_ <=> $n } @limits ]++;
    }
  slide { printf "%4s <= value < %4s : %d\n", $a, $b, shift @bins // 0 }
    '-inf', @limits, '+inf';
  }