Given the Scheme code below, answer the following questions related the Fantastic Four abstract approach. (define dtob (lambda (N) ; line 1 (if (= N 0) (list 0) ; line 2 (append (dtob (quotient N 2)) ; line 3 (list (remainder N 2 ; line 4 (1) What line of code defines the stopping condition and the return value?

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: