Letwe have lo ele ment ncomlete bihery norder 5, 2,41,1, hen dn 3,2s. tozde

plz check

as per theory, A complete binary tree exists only when the no.of nodes is equal to 1 less than a power of 2, i.e it may have 3 nodes or 7, 15, 31, 63 or (2^n -1) no.of nodes hence ...