Match the design feature or area of expertise with the benefit or increase in usability it offers. 1. standardized placement of elements simplify reading and increase the transparency of the interface 2. plain fonts ensures software fulfills its function in an efficient manner that recognizes and solves likely issues of use 3. cultural fluency takes advantage of preexisting customer expectations regarding layout 4. well-structured program logic enables the designer to make appropriate choices in style and tone for the intended end user

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: