Hi,

am attempting to remove duplicates from sorted data by keeping the last entry in a set of matching keys. For example consider the following data:

02626216000.00001.00001.00001.00001.00
02626216000.00002.00002.00002.00002.00
02626216000.00005.00000.00005.00005.00

The key is the first 8 bytes of data, followed by data buckets.
If I use the following code:

foreach (@sorted_data) {
    push(@data_out, $_) unless ($seen{substr($_,0,7)}++);
}

[download]

I eliminate the duplicate records but keep the first occurance. Is there a way to use the same hash but keep the last record of a set of recurring keys? Basically the records are sorted in ascending order and I want to keep the record (in a set of duplicates) that has the highest data values.
i.e. keep:
02626216000.00005.00000.00005.00005.00
instead of:
02626216000.00001.00001.00001.00001.00

Thanks!

In reply to removal of dupes using a hash by shaezi

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