I am writing a number guessing game, but it request to give hints to player when he guess wrong. And I need to narrow the range to be the hints, what should I write to do this function?

I am writing a number guessing game, but it request to give hints to player when he guess wrong. And I need to narrow the range to be the hints, what should I write to do this function?

The simplest hint that actually narrows the range is to tell the user "too high" or "too low" for wrong guesses.