function idx = findClosestCentroids(X, centroids)
%FINDCLOSESTCENTROIDS computes the centroid memberships for every example
%   idx = FINDCLOSESTCENTROIDS (X, centroids) returns the closest centroids
%   in idx for a dataset X where each row is a single example. idx = m x 1 
%   vector of centroid assignments (i.e. each entry in range [1..K])
%

% Set K
K = size(centroids, 1);

% You need to return the following variables correctly.
idx = zeros(size(X,1), 1);

% ====================== YOUR CODE HERE ======================
% Instructions: Go over every example, find its closest centroid, and store
%               the index inside idx at the appropriate location.
%               Concretely, idx(i) should contain the index of the centroid
%               closest to example i. Hence, it should be a value in the 
%               range 1..K
%
% Note: You can use a for-loop over the examples to compute this.
%



%point to test...
for xtest=1:size(X,1)

	x=X(xtest,:);
	idx_test=zeros(1,K);

	%centroid to test...
	for ctest=1:K
		c=centroids(ctest,:); 
		idx_test(ctest)=sumsq(x-c);
	end
	[minval,minvalidx]=min(idx_test); 
	idx(xtest,1)=minvalidx;
end





% =============================================================

end

