4,7, and 9 are all blocked. Five is open, but is there enough coffee in the pitcher to fill up both blocks before it overflows into the coffee cup? I don’t think so.
“4,7, and 9 are all blocked. Five is open, but is there enough coffee in the pitcher to fill up both blocks before it overflows into the coffee cup? I don’t think so.”
You are attaching conditions which are not stipulated in the problem.