Explain Enumerated Types with example

Enumerated types contain a list of constants that can be addressed in integer values.
We can declare types and variables as follows.
  enum days {mon, tues, ..., sun} week;
  enum days week1, week2;
NOTE: As with arrays first enumerated name has index value 0. So mon has value 0, tues 1, and so on.
week1 and week2 are variables.

We can define other values:

  enum escapes { bell = `\a',
         backspace = `\b',  tab = `\t',
         newline = `\n', vtab = `\v',
         return = `\r'};
We can also override the 0 start value:
  enum months {jan = 1, feb, mar, ......, dec};

Here it is implied that feb = 2 etc.