fn main() {
    println!("{}", equalize(vec![3,3,2,1,3]));      // 2
    println!("{}", equalize(vec![1,2,5,4,6,3]));    // 5
}

fn equalize(mut list: Vec<i32>) -> u32 {
    // Get the maximum occurring element
    let max_ele = match list.iter().max_by_key(|&x| list.iter().filter(|&a| a == x).count()) {
        Some(e) => e,
        None => return (list.len() -1) as u32,
    };
    // Filter out the remaining and count
    list.iter().filter(|&x| x != max_ele).count() as u32
}