Create 10037-maximum-size-of-a-set-after-removals.js

Author: everthis

10037-maximum-size-of-a-set-after-removals.js

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+/**
+ * @param {number[]} nums1
+ * @param {number[]} nums2
+ * @return {number}
+ */
+const maximumSetSize = function(nums1, nums2) {
+  const n = nums1.length, {min} = Math
+  const s1 = new Set(nums1), s2 = new Set(nums2)
+  const common = new Set()
+  for(const e of s1) {
+    if(s2.has(e)) common.add(e)
+  }
+  const n1 = s1.size, n2 = s2.size, c = common.size
+  return min(n, min(n1 - c, n / 2) + min(n2 - c, n / 2) + c)
+};