Merge pull request #21 from zerodays39/main

Created Stack program in c++

C++/Data-Structures/Stack.cpp

@@ -0,0 +1,45 @@
+#include <bits/stdc++.h>   //we are using cp header
+using namespace std; 
+
+void showstack(stack <int> s)  //function for stack
+{ 
+    while (!s.empty()) 
+    { 
+        cout << '\t' << s.top(); 
+        s.pop(); 
+    } 
+    cout << '\n'; 
+} 
+
+int main () 
+{ 
+    stack <int> s;    // declaring stack
+    s.push(10);                   //pushing elements
+    s.push(30); 
+    s.push(20); 
+    s.push(5); 
+    s.push(1); 
+
+    cout << "The stack is : "; 
+    showstack(s);                   //calling our stack function
+
+    cout << "\ns.size() : " << s.size(); 
+    cout << "\ns.top() : " << s.top(); 
+
+
+    cout << "\ns.pop() : "; 
+    s.pop(); 
+    showstack(s); 
+
+    return 0; 
+} 
+
+
+/*
+Output:
+The stack is :     1    5    20    30    10
+
+s.size() : 5
+s.top() : 1
+s.pop() :     5    20    30    10  
+*/