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

collections.Counter()

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1391 Discussions

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  • ermirgjoni89
     + 0 comments
    # My solution creates a list of customers as sublists [size, price]. It then iterates through this list, checks the inventory for that shoe size, adds the price to the earnings and decreases the inventory by one.

from collections import Counter

num_shoes = int(input())
inventory = Counter(list(map(int, list(input().split()))))
num_customers = int(input())
customers = []
for i in range(num_customers):
    customers.append(list(map(int, list(input().split()))))

earned = 0
for customer in customers:
    if inventory[customer[0]] > 0:
        earned += customer[1]
    inventory[customer[0]] -= 1
print(earned)

  • asanjyal56
     + 0 comments
    # Enter your code here. Read input from STDIN. Print output to STDOUT
from collections import Counter
X = int(input())
shoe_sizes = list(map(int,input().split()))
N = int(input())
total_earned = 0
for i in range(N):
    size,price = map(int,input().split())
    if size in shoe_sizes:
        total_earned += price
        shoe_sizes.remove(size)

print(total_earned)

  • gokulharidev
     + 0 comments
    from collections import Counter
n=int(input());tot=0
size=Counter(map(int,input().split()))
sell=int(input())
for _ in range(sell):
    shoeS,price=map(int,input().split())
    if shoeS in size and size[shoeS] >0:
        tot+=price
        size.subtract({shoeS:1})
    else:
        continue
print(tot)

  • hreshavena
     + 0 comments

    // writtten by my freind from collections import Counter n = int(input()) ls = list(map(int,input().split())) test = int(input()) ls = Counter(ls) tot=0 for i in range(test): n,m = map(int,input().split()) if(ls[n] > 0): tot+=m

    ls[n]-=1

    print(tot)

  • mdomarfarukahme1
     + 0 comments

    from collections import Counter

    def calculate_earnings(shoe_sizes, customers): stock = Counter(shoe_sizes) earnings = 0

    for size, price in customers:
    if stock[size]:
        earnings += price
        stock[size] -= 1

return earnings

    if name == 'main': x = int(input()) shoe_sizes = list(map(int, input().split())) n = int(input()) customers = [tuple(map(int, input().split())) for _ in range(n)]

    total_earnings = calculate_earnings(shoe_sizes, customers)
print(total_earnings)