Motivated by a linear time-complexity result for an adaptive Monte Car
lo algorithm, we propose and analyze an adaptive deterministic algorit
hm. We restrict a grid search to nested subregions that promise to pro
vide improvement of the current solution, and we obtain an exponential
rate of convergence in function evaluations. For proving the main res
ult we restrict ourselves to functions on hypercubes. In a final secti
on we outline how to extend the method to the general case and give so
me numerical examples.