Here's an approach: Generate all possible rows containing zeros and ones, except all zeros or all ones;; Sort rows (atomically) based on row ... ... <看更多>

If ones() is allowed: x = ones(size(a,1),1) *( 1:size(a,2)); y = (1:size(a,1))' * ones(1,size(a,2)); a(y>=x). If ones() is not allowed: ... <看更多>