题目网址: http://www.puzzleup.com/2016/
http://www.puzzleup.com/2016/puzzle/?5
答题时限: ８月25日７ＰＭ－比赛结束（约12月14日）
加分时限: ８月25日７ＰＭ－８月30日６：５９ＰＭ
答对可得基本分１００分。答案可上传５次，每改１次答案从基本分扣２０分。
比赛期间内可随时上传答案，加分时限内答对第ｎ天加（６－ｎ）分
另依题目的难易有额外加分（如有８０％的人这题答错，答对者加８０分）
◆ONE HUNDRED COINS
In how many ways 100 gold coins can be divided into groups, so that the
difference between any two groups is at most 2?
Note: Permutations are not considered as different.
Example: If the problem was asked for 6 coins, the answer would be 9:
(1,1,1,1,1,1), (1,1,1,1,2), (1,1,2,2), (1,1,1,3), (1,2,3), (2,2,2), (2,4),
(3,3), (6).
现要把一百枚金币分成数堆，使得任意两堆的金币数都最多差２，有几种方法？
# 重新排列并不视为不同的方法
举例: 6个金币有9种分法:
(1,1,1,1,1,1), (1,1,1,1,2), (1,1,2,2), (1,1,1,3), (1,2,3), (2,2,2), (2,4),
(3,3), (6).