def mean_bucket(ht):
    nonempty_buckets = 0
    entries = 0
    for bucket in ht:
        if len(bucket) > 0:
            nonempty_buckets = nonempty_buckets + 1
            entries = entries + len(bucket)
    return entries/nonempty_buckets

def largest_bucket(ht):
    max_so_far = 0
    for bucket in ht:
        if len(bucket) > max_so_far:
            max_so_far = len(bucket)    
    return max_so_far