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

collections.Counter()

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  • agshivangi3393
     + 0 comments

    shoes=int(input()) shoe_size=list(map(int,input().split())) customer=int(input()) list=[] for i in range(customer): shoe,price=input().split() list.append([int(shoe),int(price)]) final_list=[] for i in list: for j in shoe_size: if i[0]==j: shoe_size.remove(j) final_list.append(i[1]) break print(sum(final_list))

  • sowhardh_codes
     + 0 comments
    import collections
input()
shoes = collections.Counter(map(int, input().split()))
money = 0
for i in range(int(input())):
    size, price = map(int, input().split())
    if shoes[size]:
        money += price
        shoes[size] -= 1
print(money)

  • willwood808
     + 0 comments
    from collections import Counter
revenue = 0
X = int(input())
stock = Counter(map(int,input().split()))
for _ in range(int(input())):
    size, price = map(int,input().split())
    if stock.get(size):
        revenue += price
        stock[size] -= 1
print(revenue)

  • druvasadvik123
     + 0 comments
    from collections import Counter

X = int(input())
shoe_list = input().split()
new_shoe_list = []

for i in shoe_list:
    i = int(i)
    new_shoe_list.append(i)

N = int(input())
counter_dict = dict(Counter(new_shoe_list))
pisal = 0

for i in range(N):
    shoe_size, quantity = map(int, input().split())
    
    if shoe_size in counter_dict.keys():
        if counter_dict[shoe_size] != 0:
            counter_dict[shoe_size] -= 1
            pisal += quantity

print(pisal)

  • druvasadvik123
     + 0 comments

    from collections import Counter

    X = int(input()) shoe_list = input().split() new_shoe_list = []

    for i in shoe_list: i = int(i) new_shoe_list.append(i)

    N = int(input()) counter_dict = dict(Counter(new_shoe_list)) pisal = 0

    for i in range(N): shoe_size, quantity = map(int, input().split())

    if shoe_size in counter_dict.keys():
    if counter_dict[shoe_size] != 0:
        counter_dict[shoe_size] -= 1
        pisal += quantity

    print(pisal)

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