Invalid reservation will result in an exception. Here is a possible list counter is closed, seats are not available, service is cancelled, insufficient funds to purchase, payment gateway is not responding. Create collections or lists of relevant objects. Think of possible objects based on these facts: Bus Company has Routes Routes have Buses Buses have Seats with each seat having a status (occupied or free) Customer should provide the name and payment information. Create a demo app. Implement TicketPurch

Write a program that performs a simple n-body simulation, called "jumping leprechauns." this simulation involves n leprechauns, numberd 1 to n. it maintains a gold value g_i for each leprechaun i, which begins with each leprechaun starting out with a million dollars worth of gold, that is, g_i = 1000000 for each i = 1,. in addition, the simulation also maintains, for each leprachaun, i, a place on the horizon, which is represented as a double-precision floating point number, x_i. in each iteration of the simulation, the simulation processes the leprachauns in order. processing a leprachaun i during its iteration begins by computing a new place on the horizon for i, which is determined by the assignment: