ARSYS

q3.js

var MAX = 3;

var a=0, b=0, n=0, p=0;
var ncorr = 0, pred=0;

var histpred = {};
var hist = [false,false,false,false];

for (var i=0; i<24; i++) {
  a = (a+1)%2;
  b = (b+1)%3;

  var act = a<b;

  var id = JSON.stringify(hist);
  pred = histpred[id] || false;
  ncorr += act == pred;
  histpred[id] = act;
  hist.push(act);
  hist.shift();
}

console.log(ncorr);