Create 242-Valid-Anagrams.swift

swift/242-Valid-Anagrams.swift

@@ -0,0 +1,25 @@
+/**
+ * Question Link: https://leetcode.com/problems/valid-anagram/
+ */
+
+class ValidAnagram {
+ func isAnagram(_ s: String, _ t: String) -> Bool {
+ if s.count != t.count {
+ return false
+ }
+ var countS = [Int:Int]()
+ var countT = [Int:Int]()
+ let sChars = Array(s)
+ let tChars = Array(t)
+ for i in 0..<sChars.count {
+ countS[Int(sChars[i].asciiValue!)] = 1 + countS[Int(sChars[i].asciiValue!), default: 0]
+ countT[Int(tChars[i].asciiValue!)] = 1 + countT[Int(tChars[i].asciiValue!), default: 0]
+ }
+ for (key, _) in countS {
+ if countS[key] != countT[key, default: 0] {
+ return false
+ }
+ }
+ return true
+ }
+}