hello , i need help in this lisp program

Write a Lisp program that calculates the distance between two arbitrary points P1:(x1 y1) and

P2:(x2 y2) based on the following formula.

( P1, P2)= sqrt(( X1 X2)^2 + ( Y1 Y2)^2) Implement your program in two different ways:

1- Using anonymous function (lambda)

2- Without applying the anonymous function. Which method is more efficient in terms of memory allocation?