290. Word Pattern

Author: VinayByte

290.WordPattern.kt

@@ -0,0 +1,28 @@
+/*
+https://leetcode.com/problems/word-pattern/description
+*/
+fun wordPattern(pattern: String, s: String): Boolean {
+    val map: MutableMap<String, Char> = HashMap()
+    val patternArray = pattern.toCharArray()
+    val sArray = s.split(" ")
+    if (patternArray.size != sArray.size) {
+        return false
+    }
+
+    for (i in sArray.indices) {
+        val key = sArray[i]
+        val value = patternArray[i]
+
+        if (!map.containsKey(key) && !map.containsValue(value)) {
+            map[key] = value
+        } else if (!map.containsKey(key) && map.containsValue(value)) {
+            return false
+        } else {
+            if (map[key] != value) {
+                return false
+            }
+        }
+    }
+
+    return true
+}