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  1. Prepare
  2. Python
  3. Sets
  4. Set .discard(), .remove() & .pop()
  5. Discussions

Set .discard(), .remove() & .pop()

  • pithambar20
     + 0 comments
    n = int(input())
s = set(map(int, input().split()))

n1 = int(input())

for i in range(n1):
    method = input().split()
    
    if len(method) == 1 and method[0]=="pop":
        s.pop()
    elif method[0] == "remove" :
        s.remove(int(method[1]))
    elif method[0] == "discard":
        s.discard(int(method[1]))

print(sum(s))