Challenge - #52 - Set .discard(), .remove(), & .pop()
n = int ( input ()) s = set ( map ( int , input ().split())) for i in range ( int ( input ())): inp = input () if inp == "pop" : s.pop() else : command , value = inp.split() if command == "discard" : s.discard( int (value)) else : s.remove( int (value)) print ( sum (s))