Classify the languages given below as a) deterministic context free, b) context free but not deterministic, c) not context free. Give explanantion.
i) L = {ai bj | i j }
ii) L = {ai bj ck | i j or j k }
iii) L = {w {a,b}* | the number of a's in w is the same as the number of b's in w }