[frollogaston]

Oh right, so the height is practically a constant. Square root for sure then.

[LPisGood]

All algorithms are O(1) in this case

[frollogaston]

You pick what things are constant and what's variable. If you're scaling a supercomputer to fit a problem, the height is going to max out quickly and can be treated as constant, while the other dimensions are variable.