Rendezvous with cassidoo question of the week – September 28th, 2020

gimme_pizza.rb

# Given an array of people objects (where each person has a name and a number of pizza slices they’re hungry for) and a number for the number of slices that the pizza can be sliced into, return the number of pizzas you need to buy.
# 
# Example:
# 
# $ arr = [{ name: Joe, num: 9 }, { name: Cami, num: 3 }, { name: Cassidy, num: 4 }]
# $ gimmePizza(arr, 8)
# $ 2 // 16 slices needed, pizzas can be sliced into 8 pieces, so 2 pizzas should be ordered

def gimmePizza(people, slices_per_pizza)
  slices = people.map{|o| o.fetch(:num)}.sum
  (slices.to_f / slices_per_pizza.to_f).ceil
end