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  1. Prepare
  2. Python
  3. Collections
  4. collections.Counter()
  5. Discussions

collections.Counter()

  • marinskiy
     + 7 comments

    Here is Python 3 solution from my HackerrankPractice repository:

    import collections


number_of_shoes = int(input())
sizes_in_stock = collections.Counter(map(int, input().split()))

total_revenue = 0

for _ in range(int(input())):
    size, price = map(int, input().split())
    if sizes_in_stock[size]:
        total_revenue += price
        sizes_in_stock[size] -= 1

print(total_revenue)

    Feel free to ask if you have any questions :)