Update Swift/49. Group Anagrams.swift

Author: liuchuo

Swift/49. Group Anagrams.swift

@@ -0,0 +1,10 @@
+// 49. Group Anagrams
+// 164 ms, 58.49%
+func groupAnagrams(_ strs: [String]) -> [[String]] {
+    var dict = [String: [String]]()
+    strs.forEach {
+        let s = String($0.sorted())
+        dict[s] = (dict[s] == nil) ? [$0] : dict[s]! + [$0]
+    }
+    return dict.map({$0.value})
+}