933. Number of Recent Calls

Author: a-khakimov

leetcode-scala/src/main/scala/LeetCode75/Queue/933. Number of Recent Calls.sc

@@ -0,0 +1,23 @@
+class RecentCounter() {
+
+  private val queue = scala.collection.mutable.Queue.empty[Int]
+
+  def ping(t: Int): Int = {
+    queue.addOne(t)
+    val d = t - 3000
+    queue.dequeueWhile(_ < d)
+    queue.size
+  }
+}
+
+/**
+ * Your RecentCounter object will be instantiated and called as such:
+ * val obj = new RecentCounter()
+ * val param_1 = obj.ping(t)
+ */
+
+val counter = new RecentCounter()
+counter.ping(1)
+counter.ping(100)
+counter.ping(3001)
+counter.ping(3002)