in this problem a heap is defined/constructed upon an ordinary array in the most common way

> is this a valid input?
> 
> 4
> 1
> 5 3
> 4 5 9 2
> 3 5 6
> 
> does the heap in this problem just look like common heaps (the number of keys in the last line can be less than 2^(n-1)) ?