Create seat-reservation-manager

Author: a93a

kotlin/seat-reservation-manager

@@ -0,0 +1,15 @@
+class SeatManager(n: Int) {
+    val unres = PriorityQueue<Int>()
+
+    init {
+        for (i in 1..n)
+            unres.add(i)
+    }
+
+    fun reserve() = unres.poll()
+
+    fun unreserve(seatNumber: Int) {
+        unres.add(seatNumber)
+    }
+
+}