Algorithm Running Times
Function
Name
Big-Oh
c
Constant
O(1)
log N
Logarithmic
O(log N)
log2N, logkN
Log-squared, Poly-logarithmic
O(log2N), O(logkN)
N
Linear
O(N)
N2 , N3
Quadratic, Cubic
O(N2), O(N3)
Nk
Polynomial
O(Nk)
2N
Exponential
O(2N)
Super-exponential