Russian Doll Envelope

russianDollEnvelope.js

 var maxEnvelopes = function(envelopes) {
  for (var i = 0; i < envelopes.length; i++) {
    for (var j = 0; j < envelopes.length - 1; j++) {
      if (envelopes[j][0] > envelopes[j+1][0] && envelopes[j][1] > envelopes[j+1][1]) {
        var temp = envelopes[j+1];
        envelopes[j+1] = envelopes[j];
        envelopes[j] = temp;
      }
    }
  }
  var count = 0;
  for (var k = 0; k < envelopes.length - 1; k++) {
    if (envelopes[k][0] < envelopes[k+1][0] && envelopes[k][1] < envelopes[k+1][1]) {
    } else {
      envelopes.splice(j, 1);
    }
  }
  console.log(envelopes);
  return envelopes.length;
};

var env = [[5,4],[6,4],[6,7],[2,3],[1,1],[1, 2]];

console.log(maxEnvelopes(env));