cur
to 0, i
to 0, and j
to 0. These variables represent the current number of boxes, the total number of boxes on the floor, and the size of the last layer, respectively.cur
is less than n
, increment j
by 1, add j
to i
, and add i
to cur
.cur
equals n
, return i
as the result.i
from cur
and j
from i
.j
to 0.cur
is less than n
, increment j
by 1 and add j
to cur
.i
and j
as the final result.