Create 0290-word-pattern.kt

Author: a93a

kotlin/0290-word-pattern.kt

@@ -0,0 +1,17 @@
+class Solution {
+    fun wordPattern(pattern: String, s: String): Boolean {
+        val wordArray = s.split(" ")
+        if(wordArray.size != pattern.length) return false
+        val hm = HashMap<Char, String>()
+        pattern.forEachIndexed { i, c -> 
+            when(hm.contains(c)){
+                true -> if(hm[c] != wordArray[i]) return false
+                false -> {
+                    if(hm.containsValue(wordArray[i])) return false
+                    hm[c] = wordArray[i]
+                }
+            }
+        }
+        return true
+    }
+}