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+#!/usr/bin/env perl
+
+# Pythagoras Pie Puzzle, proposed by Jo Christian Oterhals.
+
+# At a party a pie is to be shared by 100 guest. The first guest gets 1% of the
+# pie, the second guest gets 2% of the remaining pie, the third gets 3% of the
+# remaining pie, the fourth gets 4% and so on.
+
+# Write a script that figures out which guest gets the largest piece of pie.
+
+use 5.026;
+use strict;
+use warnings;
+use bignum;
+
+my $pie = 100/100;
+
+my $largest_slice = 0;
+
+my $guest = 0;
+
+for my $i (1 .. 100) {
+    my $slice = $pie * $i / 100;
+    $pie -= $slice;
+    if ($slice > $largest_slice) {
+        $largest_slice = $slice;
+        $guest = $i;
+    }
+    # say "The ${i}º guest got $slice of the total.";
+    last if $pie < $largest_slice;
+}
+
+say "The ${guest}º guest got the larget pie, which is $largest_slice of the total.";