gistfile1.txt

var maxEnvelopes = function(envelopes) {
  let dollArray = [];
  envelopes.forEach((element) => {
  	if(typeof element === 'number') {
  		dollArray.push(element);
  	} else {
    element.forEach(x => {
	  dollArray.push(x);
    })	
  	}
  })  
  let finalEnv = [];
  let newEnv = new Set(dollArray);
  let array = [...newEnv].sort((a, b) => {
  	return a - b;
  })
  for ( let i = 0 ; array.length % 2 === 0 ? i < array.length : array.length - 1 ; i += 2) {
    finalEnv.push([array[i], array[i + 1]]);
  }
  return finalEnv;
};