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

collections.Counter()

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1423 Discussions

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  • hippophantez
     + 0 comments
    from collections import Counter

X = int(input()) # num of shoes
shoe_stock = Counter(list(map(int,input().split(" "))))
num_of_customers = int(input())
earned = 0
for i in range(num_of_customers):
    cust_size, cust_price = list(map(int,input().split(" ")))
    #if size is buyable then -1 to size and plus price
    if shoe_stock[cust_size]:
        shoe_stock[cust_size] -= 1
        earned += cust_price
print(earned)

  • hzerryn
     + 0 comments

    Without using the Counter:

    # Enter your code here. Read input from STDIN. Print output to STDOUT
num_shoes = int(input())
shoes = list(map(int, input().split(' ')))

sizes = {}
# build shoe sizes dictionary
for i in shoes:
    if i in sizes:
        sizes[i] += 1
    else:
        sizes[i] = 1
        
num_customers = int(input())

customers = []
profit = 0

for i in range(num_customers):
    size, cash = map(int, input().split(' '))
    if size in sizes:
        if sizes[size] != 0:
            profit += cash
            sizes[size] -= 1
        
print(profit)

  • janclydettalosi1
     + 0 comments

    my code without using any imports or libraries

    x = int(input())

    shoeSize = list(map(int, input().split()))

    n = int(input())

    total = 0

    if (0 < x < 10**3) or (0 < n <= 10**3) or (20 < x_i < 100) or (2 < shoeSize < 20): for _ in range(n): size, price = map(int, input().split()) if size in shoeSize: total += price shoeSize.remove(size) print(total)

  • dathwathup
     + 0 comments
    from collections import Counter

num_shoes = int(input())
size_inventory = Counter(int(x) for x in input().split())
num_customers = int(input())

customer_orders = []
profit = 0

for i in range(num_customers):
    customer_orders.append(tuple(int(x) for x in input().split()))

for (size, price) in customer_orders:
    if size_inventory[size] > 0:
        size_inventory[size] -= 1
        profit += price

print(profit)

  • guchhaitpralay7
     + 0 comments
    from collections import Counter

number_of_shoes: int = int(input())
shoes_sizes_availability: Counter[int] = Counter(map(int, input().split()))

number_of_customers: int = int(input())

earnings: int = 0

for _ in range(number_of_customers):
    size, price = map(int, input().split())
    if shoes_sizes_availability[size] > 0:
        earnings += price
        shoes_sizes_availability[size] -= 1

print(earnings)