Function is_contiguous 

pub fn is_contiguous(shape: &[usize], strides: &[usize]) -> bool

Check if the current tensor is contiguous.

A tensor is considered contiguous if its elements are stored in memory such that the stride at position k is equal to the product of the shapes of all dimensions greater than k, except for dimensions of size one.

This means that strides increase as you move from the rightmost to the leftmost dimension, ignoring dimensions of size one.

Dimensions of size one may have any stride, including zero, since their stride is never applied.