in c++ or c

void main() \{ Stack aStk; //object of type Stack aStk.push("Tim",2222); aStk.push("Jan",1111); aStk.push("Elize",0111); system(pause); \} Complete these tasks: 1. Finish the push() method 2. Implement the pop() 3. Give the stackTop() prototype decalration and implement the method to display the top element of the stack 4. Add at least 2 calls to the new methods implemented in the main() 5. Determine the Big-O of stack implementation