It is quite simple. Here's an implementation. The
apportion figures out chunk sizes;
multi_slice returns slices of those sizes. The
for block runs a few examples.
sub apportion {
my ($elements, $pieces) = @_;
my $small_chunk = int $elements / $pieces;
my $oversized_count = $elements % $pieces;
((1 + $small_chunk) x ($oversized_count), ($small_chunk) x ($pieces
+- $oversized_count));
}
sub multi_slice {
my ($aref, @chunk_sizes) = @_;
my $hi_i = -1;
map {
my $lo_i = $hi_i + 1;
$hi_i += $_;
[@$aref[$lo_i..$hi_i]]
} @chunk_sizes;
}
for my $try ([16,3], [17,4], [19,3]) {
print "$try->[0] elements into $try->[1] pieces:\n";
print "Sizes: ", join(', ', apportion(@$try)), "\n";
print "@$_\n" for multi_slice([1..$try->[0]], apportion(@$try));
}
Caution: Contents may have been coded under pressure.
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