Shania has started a new job as an app developer. her first task was to make an old app designed for android available on other platforms. which of the following would make her job easiest and fastest?
a. develop different versions of the same app for different programs. b. use cross-platform tools to write code that will translate the existing android app code into different native formats. c. feed the existing code into cross-platform tools to develop different versions of the same app. d. use the same set of codes for different platforms.

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: