solve problem

Author: delight010

group-anagrams/delight010.swift

@@ -0,0 +1,23 @@
+class Solution {
+    func groupAnagrams(_ strs: [String]) -> [[String]] {
+        var dict: [[Character: Int]: [String]] = [:]
+        for str in strs {
+            var strDict: [Character: Int] = [:]
+            for char in str {
+                if let charCount = strDict[char] {
+                    strDict[char] = charCount + 1
+                } else {
+                    strDict[char] = 1
+                }
+            }
+            if dict[strDict] != nil {
+                dict[strDict]?.append(str)
+            } else {
+                dict[strDict] = [str]
+            }
+        }
+        
+        return dict.values.map { $0 }
+    }
+}
+