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+#!perl
+use strict;
+use warnings FATAL => qw(all);
+
+=prompt
+You are given a date in the format YYYY-MM-DD.
+Write a script to convert it into binary date.
+
+Example 1
+
+Input: $date = "2025-07-26"
+Output: "11111101001-111-11010"
+
+
+Example 2
+
+Input: $date = "2000-02-02"
+Output: "11111010000-10-10"
+
+
+Example 3
+
+Input: $date = "2024-12-31"
+Output: "11111101000-1100-11111"
+
+=cut
+
+use Test2::V0 -no_srand => 1;
+
+is(binary_date('2025-07-26'), '11111101001-111-11010', 'Example 1');
+is(binary_date('2000-02-02'), '11111010000-10-10', 'Example 2');
+is(binary_date('2024-12-31'), '11111101000-1100-11111', 'Example 3');
+done_testing();
+
+sub binary_date
+{
+     my $str = $_[0];
+     return join('-',
+          map { sprintf("%b", $_) }
+          split(/\-/, $str, -1));
+     
+     
+}