Dubly Linked LIST
It is basic program of dubly linked list.
List has head, tail, and size.
Node has next, value, and prev.
You can insert, search value delete, current delete, move pointer right, move pointer left, and empty list.
It is poly calculator.
You can make two poly and calculate such as sum, substract, and multiply.
But it can't sort by exponent.
list.c : code of dubly linked list
list.h : functions & variables for list.c
list.exe : list program for cygwin
poly.c : code of poly calculator
poly.h : functions & variables for poly.c
poly.exe : poly calculator program for cygwin
readme.exe : this readme file, which contains file informations