Create stack.cpp

C++/stack.cpp

@@ -0,0 +1,75 @@
+#include<iostream>
+using namespace  std ;
+#define max 20 
+class stack
+{
+   int stck[max]  ;
+   int top ;
+public :
+    void init() ;
+    void push(int i) ;
+    void pop() ;
+    void display() ;
+};
+void stack::init()
+{
+    top=0;
+}
+void stack::push(int i)
+{
+
+    if(top==max-1)
+    {
+        cout<<"Stack is full\n" ;
+    }
+    else
+    {
+        top++ ;
+        stck[top]= i ;
+    }
+}
+void stack::pop()
+{
+    int x ;
+    if(top==0)
+    {
+        cout<<"Stack is empty\n" ;
+    }
+    else
+    {
+        x=stck[top] ;
+        top--;
+        cout<<"Deleted element is:"<<x ;
+    }
+}
+void stack::display()
+{
+    if(top==-1)
+    {
+        cout<<"Stack is empty\n" ;
+    }
+    else
+    {
+        cout<<"Elements in the stack are\n" ;
+        while(top>=0)
+        {
+            cout<<stck[top] ;
+            top--;
+        }
+    }
+}
+int main()
+{
+    stack stack1 ;
+    stack1.push(20) ;
+    stack1.push(28) ;
+    stack1.push(89) ;
+    stack1.push(67) ;
+
+    stack1.pop() ;
+
+
+    stack1.display() ;
+
+    return 0 ;
+}