14.
There are two distinguishable flagpoles, and there are 19 flags, of which 10 are identical blue flags, and 9 are identical green flags. Let \(N\) be the number of distinguishable arrangements using all of the flags in which each flagpole has at least one flag and no two green flags on either pole are adjacent. Find the remainder when \(N\) is divided by 1000.
(2008AIMEII,連結有解答https://artofproblemsolving.com/ ... Problems/Problem_12)
19.
Four regular hexagons surround a square with side length 1, each one sharing an edge with the square, as shown in the figure below. The area of the resulting 12-sided outer nonconvex polygon can be written as \(m \sqrt{n} + p\), where \(m\), \(n\), and \(p\) are integers and \(n\) is not divisible by the square of any prime. What is \(m+n+p\)?
(2022AMC12B,連結有解答https://artofproblemsolving.com/ ... Problems/Problem_25) 作者: anyway13 時間: 2024-4-28 17:37 標題: 第12題