Distinct Number

You are given two arrays $A$ and $B$ each of length $N$. Now you are given two pair of ranges i.e. a range $[a,b]$ in the array $A$ and range $[c,d]$ int the array $B$. For each query, you need to count distinct elements in the array which is formed by combining elements of the both ranges in the query. ###Input: - The first line contains an integer $N$ as input. - Next line contains $N$ sp