Hackerrank Ruby Control Structures - Unless Solution
You've updated the score of every HackerRank user who participated in a contest. Sometimes, HackerRank admins also participate in a given contest but care is taken to ensure that their submissions do not get any score and their score is not updated.
Like the previous challenge, you are given a method scoring
with an array passed as an argument. Each element of the array is of class User
.
User
has two public methods, is_admin?
and update_score
. Your task in this challenge is to use the control structure unless
and update all elements of the array who are not admins
.
Hint
unless user.is_admin?
user.update_score
end
or
user.update_score unless user.is_admin?
The above code is a Ruby one liner.
Explanation
unless
is the logical equivalent of if not
Solution in ruby
def scoring(array)
array.each do |user|
user.update_score unless user.is_admin?
end
end