#P3794. Subarray GCD XOR OR
Subarray GCD XOR OR
Subarray GCD XOR OR
You are given a sequence of n positive integers \([a_1, a_2, \cdots, a_n]\). Your task is to count the number of pairs \((i,j)\) such that \(1 \le i \le j \le n\) and
[ \gcd(a_i, a_{i+1}, \ldots, a_j) \oplus (a_i \lor a_{i+1} \lor \cdots \lor a_j) = k, ]
where \(\oplus\) denotes the bitwise XOR operation and \(\lor\) denotes the bitwise OR operation.
Note that all numbers in the sequence are positive integers.
inputFormat
The first line contains two integers \(n\) and \(k\) separated by a space.
The second line contains \(n\) positive integers \(a_1, a_2, \ldots, a_n\) separated by spaces.
outputFormat
Output a single integer representing the number of pairs \((i, j)\) satisfying the condition.
sample
3 0
1 1 1
6