OR of ANDs

You are given an array $A$ with $N$ integers. An array's score is defined as the bitwise AND of all its elements. You need to find the bitwise OR of the scores of all possible non-empty subarrays of $A$. Furthermore, there are $Q$ queries. Each query consists of two integers $X$ and $V$. You need to change the value of the element at index $X$ to $V$. After each query, you again need to find the