Create implement-stack-using-queue.cpp

C++program/implement-stack-using-queue.cpp

@@ -0,0 +1,54 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+class Stack{
+    public:
+        queue<int> q;
+
+        void push(int x){
+            q.push(x);
+            for(int i=0; i<q.size()-1; i++){
+                q.push(q.front());
+                q.pop();
+            }
+        }
+
+        void pop(){
+            q.pop();
+        }
+
+        void top(){
+            cout<<q.front()<<endl;
+        }
+
+        void isEmpty(){
+            if(q.empty())
+                cout<<"Stack is Empty"<<endl;
+            else
+                cout<<"Stack is not Empty"<<endl;
+
+        }
+};
+
+int main()
+{
+    Stack s;
+    s.isEmpty();
+    s.push(5);
+    s.top();
+
+    s.push(4);
+    s.top();
+
+    s.push(3);
+    s.top();
+
+    s.push(2);
+    s.top();
+
+    s.isEmpty();
+    s.push(1);
+    s.top();
+
+    return 0;
+}