Unique Array of Arrays

ktsirig · #1 (**permalink**) Jan 27th, 2006, 09:14

Hi all!
I have an array of arrays that i want to make unique. That is, I have:
@AoA=(["1","15"], ["2","5"], ["3","4"], ["3","5"], ["3","8"], ["3","5"], ["4","6"], ["4","5"])
and I want to remove array element ["3","5"] which is seen twice if you notice.
Is that possible? I am confused with this!

grahame · #2 (**permalink**) Jan 27th, 2006, 16:30

Is this Perl? If so, use splice:

Code: Select all

@AoA=(["1","15"], ["2","5"], ["3","4"], ["3","5"], ["3","8"], ["3","5"], ["4","6"], ["4","5"]);

foreach $part(@AoA) {
        print ("@{$part} ..."); }
print "\n";

splice(@AoA,5,1);

foreach $part(@AoA) {
        print ("@{$part} ..."); }
print "\n";

Results:

Code: Select all

earth-wind-and-fire:~/jan06 grahamellis$ perl ppd
1 15 ...2 5 ...3 4 ...3 5 ...3 8 ...3 5 ...4 6 ...4 5 ...
1 15 ...2 5 ...3 4 ...3 5 ...3 8 ...4 6 ...4 5 ...
earth-wind-and-fire:~/jan06 grahamellis$

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Unique Array of Arrays