Create NumberofRecentCalls.cpp

Easy

NumberofRecentCalls.cpp

@@ -0,0 +1,26 @@
+class RecentCounter {
+public:
+    queue<int> q;
+    RecentCounter() {
+
+    }
+
+    int ping(int t) {
+        if(!q.empty()){
+            int time=q.front();
+            while(!q.empty() and t-time>3000){
+                q.pop();
+                time=q.front();
+            }
+            q.push(t);
+        }
+        else q.push(t);
+        return q.size();
+    }
+};
+
+/**
+ * Your RecentCounter object will be instantiated and called as such:
+ * RecentCounter* obj = new RecentCounter();
+ * int param_1 = obj->ping(t);
+ */