Merge pull request soapyigu#282 from peacemoon/shorten_findmissingpos…

…sitive Shorten FindMissingPossitive.
LeWinCom · Dec 9, 2019 · e4f426c · e4f426c
2 parents 2c6bb3c + efb046d
commit e4f426c
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/Array/FirstMissingPositive.swift b/Array/FirstMissingPositive.swift
@@ -7,9 +7,7 @@
 
 class FirstMissingPositive {
     func firstMissingPositive(_ nums: [Int]) -> Int {
-        var set = Set<Int>()
-
-        nums.forEach { set.insert($0) }
+        let set = Set(nums)
 
         for i in 0..<nums.count {
             if !set.contains(i + 1) {
@@ -19,4 +17,4 @@ class FirstMissingPositive {
 
         return nums.count + 1
     }
-}
+}