I'm getting some errors with the following methods:

1) How do I return screenHeight / cellCount as a CGFLoat for the first method?

2) How do I use the equivalent of ObjC's MIN() and MAX() in the second method?

func tableView(tableView: UITableView!, heightForRowAtIndexPath indexPath: NSIndexPath!) -> CGFloat {
    var cellCount = Int(self.tableView.numberOfRowsInSection(indexPath.section))

    return screenHeight / cellCount as CGFloat
}

// #pragma mark - UIScrollViewDelegate

func scrollViewDidScroll(scrollView: UIScrollView) {
    let height = CGFloat(scrollView.bounds.size.height)
    let position = CGFloat(MAX(scrollView.contentOffset.y, 0.0))

    let percent = CGFloat(MIN(position / height, 1.0))
    blurredImageView.alpha = percent
}