You are given a string
daterepresenting a Gregorian calendar date in theyyyy-mm-ddformat.
datecan be written in its binary representation obtained by converting year, month, and day to their binary representations without any leading zeroes and writing them down inyear-month-dayformat.Return the binary representation of
date.
3279. Maximum Total Area Occupied by Pistons
There are several pistons in an old car engine, and we want to calculate the maximum possible area under the pistons.
You are given:
- An integer
height- An integer array
positions, wherepositions[i]is the current position of pistoni- A string
directions, wheredirections[i]is the current moving direction of pistoni,'U'for up, and'D'for down.Each second:
- Every piston moves in its current direction 1 unit. e.g., if the direction is up,
positions[i]is incremented by 1.- If a piston has reached one of the ends, i.e.,
positions[i] == 0orpositions[i] == height, its direction will change.Return the maximum possible area under all the pistons.