diff --git a/Leetcode/Number of Recent Calls.cpp b/Leetcode/Number of Recent Calls.cpp
new file mode 100644
index 0000000..92ad086
--- /dev/null
+++ b/Leetcode/Number of Recent Calls.cpp	
@@ -0,0 +1,21 @@
+class RecentCounter {
+public:
+    queue<int>temp;
+    RecentCounter() {
+     
+    }
+    int ping(int t) {  
+        temp.push(t);
+        while(temp.front()<t-3000)
+        {
+            temp.pop();
+        }
+        return temp.size();
+    }
+};
+
+/**
+ * Your RecentCounter object will be instantiated and called as such:
+ * RecentCounter* obj = new RecentCounter();
+ * int param_1 = obj->ping(t);
+ */
\ No newline at end of file