i.  4 integer types + unsigned

 ii.  Float, double, long double

iii.  bool, char, string

 iv.  Variable naming rules

  i.  + - * / % ()

  i.  If, else if, else and relation operators (==, >, <, >=, <=, &&, ||, !)

 ii.  Switch, case, default

  i.  For loop

 ii.  While loop
 
iii.  Do..While Loop

  i.  [], + and relation operators

 ii.  .length(), .find(), .rfind(), getline(), insert(), erase(),
      substr(), pop_back()

  i.  Passing parameters as values or references, function calling.

 ii.  Function overloading and Templates

iii.  Recursion

  i.  Vectors + Random access iterators

 ii.  Lists + bi-directional Iterators

iii.  Queue, stack, deque

 iv.  Sets and multisets

  v.  Maps and multimaps

 vi.  Bitsets and bit manipulation