$$

$$ a zero bit array is a non empty integer arrive the bitwise and of all element is zero for example $12$ is zero bit array sins $1$ and $2$ is equal to zero but $23$ is not since two and three equal to hear and denotes the bitwise and operationgiven an array a r r of an integers for tnot as a barrel is any continuous segment of the array example suppose n is equal to $3$ and AR arehe number of zero bit sub arrays of arr