#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::ops::BitAndAssign;
#[derive(Debug, PartialEq)]
struct BooleanVector(Vec<bool>);
impl BitAndAssign for BooleanVector {
    fn bitand_assign(&mut self, rhs: Self) {
        assert_eq!(self.0.len(), rhs.0.len());
        *self = Self(self.0.iter().zip(rhs.0.iter()).map(|(x, y)| *x & *y).collect());
    }
}
fn main() {
    let mut bv = BooleanVector(vec![true, true, false, false]);
    bv &= BooleanVector(vec![true, false, true, false]);
    let expected = BooleanVector(vec![true, false, false, false]);
    assert_eq!(bv, expected);
}