vrachieru

def percentEncoding(text) {
  def reserved = [32:1, 33:1, 42:1, 34:1, 39:1, 40:1, 41:1, 59:1, 58:1, 64:1, 38:1, 61:1, 43:1, 36:1, 33:1, 47:1, 63:1, 37:1, 91:1, 93:1, 35:1];
  def encoded = text.collect { letter ->
    reserved[(int)letter] ? "%" + Integer.toHexString((int)letter).toString().toUpperCase() : letter;
  }
  return encoded.join("");
}

vrachieru

/* Merge overlapping intervals
 * 
 * Example:
 * [[1,4],[3,5],[2,4],[7,10]] -> [[1,5],[7,10]]
 */
function mergeIntervals(intervals) {
  // test if there are at least 2 intervals
  if(intervals.length <= 1)
    return intervals;