Time: 767 ms (5.06%), Space: 72.6 MB (5.06%) - LeetHub

Author: cmcoffeedev

0049-group-anagrams/0049-group-anagrams.kt

@@ -0,0 +1,12 @@
+class Solution {
+    fun groupAnagrams(strs: Array<String>): List<List<String>> {
+        val map = mutableMapOf<String, MutableList<String>>()
+        strs.forEachIndexed{ index, word ->
+            val sortedWord = word.toCharArray().sorted().joinToString("")
+            if(!map.containsKey(sortedWord)) map[sortedWord] = mutableListOf<String>()
+            map[sortedWord]?.add(word)
+        }
+        
+        return map.values.toList()
+    }
+}