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  1. Prepare
  2. Python
  3. Sets
  4. Set Mutations
  5. Discussions

Set Mutations

  • TH3TA_
     + 0 comments

    With list comprehension:

    import sys
lines = sys.stdin.readlines()
A, s, commands = set(map(int, lines[1].split())), int(lines[2]), []
[getattr(set, lines[3 + 2 * i].split()[0])(A, list(map(int, lines[4 + 2 * i].split()))) for i in range(s)]
print(sum(a for a in A))

    Without list comprehension:

    import sys
lines = sys.stdin.readlines()
A, s = set(map(int, lines[1].split())), int(lines[2])
commands = []
for i in range(s):
    command, num = lines[3 + 2 * i].split()
    lst = list(map(int, lines[4 + 2 * i].split()))
    func = getattr(set, command)
    func(A, lst)
print(sum(a for a in A))