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

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

  • DeadMoroz
     + 72 comments
    n = int(input())
s = set(map(int, input().split())) 
for i in range(int(input())):
    eval('s.{0}({1})'.format(*input().split()+['']))

print(sum(s))