The meek driver wastes no time looking for a parking spot and just parks at thefirst available spot that is behind the most distant parked car. This strategy is risiblyinefficient; many good parking spots are unfilled and most cars are parked far from thetarget. The prudent driver bets that there is at least one vacancy in the lot. If this betis wrong, the prudent driver wastes the time to travel to x = 0 and then backtracks towhere it would have parked by employing the meek strategy. The optimistic driver betsthat there is a spot close to the target and thus drives to the target and parks at thefirst vacancy encountered by backtracking (Fig. 2(c)). If a vacancy does not exist, theoptimistic driver must also backtrack and park at the end of the line of parked cars.