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

collections.Counter()

  • nandakumars825
     + 0 comments

    Way 1

    from collections import Counter

X = int(input())
shoe_sizes = Counter(map(int,input().split()))
N = int(input())
total_price = 0
for i in range(N):
    size, price = list(map(int,input().split()))
    if shoe_sizes[size] !=0:
        total_price+= price
        shoe_sizes[size] -= 1
        
print(total_price)

    Way 2

       X = int(input())
shoe_sizes = list(map(int,input().split()))

unique = set(shoe_sizes)
count_dict = {size: 0 for size in unique}

for shoe_size in shoe_sizes:
    count_dict[shoe_size] +=1

N = int(input())
total_price = 0
for i in range(N):
    size, price = list(map(int,input().split()))
    if size in count_dict.keys():
        if count_dict[size] !=0:
            total_price+= price
            count_dict[size] -= 1
        
print(total_price)