Design a program that takes an Image and a collection of m x m-sized tiles and produce a mosaic from the tiles that resembles the image.

Friend of Mine Who Appeared For Google sometimes back Told Me about this intersteting Problem:) I did some lazyness to post the question here . Are you guys are able to think about approach ? I Not Going to do no More Spoon Feeding Here :) so Try It Out

Hint :) There is Interesteing Math Behind It. Are You able to Think out the cloest point k-dimensional ? if you are able to come up with approach & complexity analysis thats enough to Crack Google