stack in stl c++

Abhijadhav03 · Jun 5, 2024 · 167953a · 167953a
1 parent ffafaf0
commit 167953a
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/STL/stack.cpp b/STL/stack.cpp
@@ -0,0 +1,18 @@
+void explainstack(){
+    stack<int> st;
+    st.push(1); //{1}
+     st.push(2); //{2,1}
+      st.push(3); //{3,2,1}
+       st.push(3); //{3,3,2,1}
+       st.empplace(5); //{5,3,3,2,1}
+cout<< st.top(); //prints 5 **st[2] is invalid**
+st.pop(); // st looks like {3,3,2,1}
+cout<< st.top(); //3
+cout<< st.size(); //4
+cout<< st.empty();
+stack<int> st1,st2;
+st1.swap(st2);
+
+
+
+}