Is Adding a Song Slow? Amortized Cost

One add to a growing playlist just copied 1,024 songs. Work out what adding really costs over a long run of adds, why doubling beats growing a little at a time, and what "amortized O(1)" promises.

Updated

Cheat sheet: Is Adding a Song Slow? Amortized Cost
Category
Data Structures
Level
Journeyman
Tags
Amortized Cost, Constant Time, data structures, Dynamic Array