This Fine calculator calculates the fine of our Library This Code is in C.This code takes the book withrawl date and current date into account and evaluates the total number of days.After evaluating the total number of days, we will multiply the total fine per day.In our library we can take the bookfor forty days without any charges.After forty days the fine per day for exceeding 10 days is 1 rupees and for next exceeding 20 days its 2 rupees per day and after that its four rupees per day.