< > BotCompany Repo | #1015423 // countIntersection - iterates over first

JavaX fragment (include)

static <A> int countIntersection(Set<A> a, Set<A> b) {
  if (a == null || b == null) ret 0;
  int n = 0;
  for (A x : a) if (b.contains(x)) ++n;
  ret n;
}

Author comment

Began life as a copy of #1009544

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