Stack - C P P

Theory

• LIFO (Last In First Out)
• Operations
  • push, pop, peek, empty

STL Commands

• #include <stack> => Header to include
• stack<dataType> var => Initialize stack
• var.push(val) => Insert value at top
• var.pop() => Returns and removes the value from top
• var.size() => Returns the size of stack
• var.top() => Returns the top element
• var.empty() => Returns boolean value true if stack is empty