Euler2

/**
 * Copyright enecre ( http://wonderfl.net/user/enecre )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/yAjL
 */

package {
    import flash.text.TextField;
    import flash.display.Sprite;
    public class Euler extends Sprite {
        private var tf:TextField = new TextField();
        public function Euler() {
            // write as3 code here..
            tf.height = 465
            addChild(tf);
            
            var n0:int = 1;
            var n1:int = 2;
            var i:int = 0;
            var sum:int = 2;
            while(true){
                var n2:int = n0 + n1;
                if(n2 > 4000000)break;
                if(n2 % 2 == 0)sum += n2;
                if(n0 > n1){
                    n1 = n2;
                }
                else n0 = n2;
            }
            tr(sum);
        }
        
        private function tr(o):void{
            tf.appendText(o + "\n");
        }

    }
}