I'm not a golfer, but...

tr/:/,/;%h=eval;@a=keys%h;

Update

y/:/,/;%h=eval;@a=keys%h;

Update 2

If the ordering of @a is important, how about

@a=/(\d+):/g;y/:/,/;%h=eval;

In reply to Re^3: better way to convert a string into an array and an hash by Rhose
in thread better way to convert a string into an array and an hash by Miguel

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