// https://leetcode-cn.com/problems/largest-component-size-by-common-factor/
pub fn largest_component_size(a: Vec<i32>) -> i32 {
    todo!()
}
// math union_find
#[test]
#[ignore]
fn test2_952() {
    assert_eq!(largest_component_size(vec![4, 6, 15, 35]), 4);
    assert_eq!(largest_component_size(vec![20, 50, 9, 63]), 2);
    assert_eq!(largest_component_size(vec![2, 3, 6, 7, 4, 12, 21, 39]), 8);
}
