Perl arrays use a doubling trick to ensure that push and unshift are near O(1) like with linked lists.

Unshifts are O(1).

Unshifts and pushes are amortized O(1) (meaning O(N) to do N of them).

In reply to Re^9: [OT:] Is this Curriculum right? by ikegami
in thread [OT:] Is this Curriculum right? by karlgoethebier

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