Binary Watch
A binary watch displays the hour using 4 LEDs (0-11) and the minute using 6 LEDs (0-59). Given a count of lit LEDs, list all valid times that use exactly that many lit LEDs. Return the times as strings in "h:mm" format.
A binary watch displays the hour using 4 LEDs (0-11) and the minute using 6 LEDs (0-59). Given a count of lit LEDs, list all valid times that use exactly that many lit LEDs. Return the times as strings in "h:mm" format.