JSFiddle - React, Tailwind, and code Playground

by evgkch

JavaScript

const ln = Math.log;
const pi = Math.PI;

const lnf = x => (x === 0) || (x === 1) ? 0 : x * (ln(x) - 1) + 0.5 * ln(2 * pi * x);

const solve = h => (a, b, c, d) => {
	const A = 4 ** h;
  const B = A / 4;
	const n = a + b + c + d;
  const q = A - n;
  
  const qa = B - a;
  const qb = B - b;
	const qc = B - c;
  const qd = B - d;
  
  const cA = (A - 1) * ln(A);
  const cB = 4 * (B - 1) * ln(B);
  
  const S1 = lnf(A) - lnf(n) - lnf(q);
  const S2 = 4 * lnf(B) - lnf(a) - lnf(b) - lnf(c) - lnf(d) - lnf(qa) - lnf(qb) - lnf(qc) - lnf(qd);
  
  return [S1, S2, S1 - S2];
};

console.log(solve(5)(32,0,32,32))

const arr = [1,2,3]
arr.shift()

console.log(arr)