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

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

  • SVVBathini_w
     + 0 comments

    For Python3 Platform

    n = int(input())
s = set(map(int, input().split()))
N = int(input())

for _ in range(N):
    cmd = input().split()
    
    if(cmd[0] == "pop"):
        try:
            s.pop()
        except KeyError:
            pass
    elif(cmd[0] == "remove"):
        try:
            s.remove(int(cmd[1]))
        except KeyError:
            pass
    elif(cmd[0] == "discard"):
        s.discard(int(cmd[1]))

print(sum(s))