Lot of comments complaining that going from O(n^2) to O(log n) is not an exponential improvement, but it is indeed an exponential improvement. In fact O(n) is e

Lot of comments complaining that going from O(n^2) to O(log n) is not an exponential improvement, but it is indeed an exponential improvement. In fact O(n) is exponentially more than O(log n).