my %templates = (
en => <<'HTML',
+<h2>Beginner</h2>
<ul>
-<tmpl_loop problems><li><a href="<tmpl_var id>"><tmpl_var name></a>
+<tmpl_loop beginner><li><a href="<tmpl_var id>"><tmpl_var name></a>
+</tmpl_loop></ul>
+
+<h2>Easy</h2>
+<ul>
+<tmpl_loop easy><li><a href="<tmpl_var id>"><tmpl_var name></a>
+</tmpl_loop></ul>
+
+<h2>Medium</h2>
+<ul>
+<tmpl_loop medium><li><a href="<tmpl_var id>"><tmpl_var name></a>
+</tmpl_loop></ul>
+
+<h2>Advanced</h2>
+<ul>
+<tmpl_loop advanced><li><a href="<tmpl_var id>"><tmpl_var name></a>
+</tmpl_loop></ul>
+
+<h2>Hard</h2>
+<ul>
+<tmpl_loop hard><li><a href="<tmpl_var id>"><tmpl_var name></a>
</tmpl_loop></ul>
HTML
);
my @problems = sort { $b->{name} cmp $a->{name} } map {
my $meta = LoadFile $_;
my $id = (m,^$path/(.*)/meta.yml$,)[0];
- +{ id => $id, name => $meta->{name} } } <$path/*/meta.yml>;
- $htc->param(problems => \@problems);
+ +{ id => $id, name => $meta->{name}, level => $meta->{level} } } <$path/*/meta.yml>;
+ for my $d(qw/beginner easy medium advanced hard/) {
+ $htc->param($d => [grep {$_->{level} eq $d} @problems]);
+ }
$htc->output
}