摘要: Given an infinite number of quarters (25 cents), dimes (10 cents), nickels (5 cents) and pennies (1 cent), find how many ways to represent n cents.思路:... 阅读全文
posted @ 2014-06-09 05:11 门对夕阳 阅读(482) 评论(0) 推荐(0) 编辑