摘要: Perfect NumbersDifficulty:MediumTopics:A number is "perfect" if the sum of its divisors equal the number itself. 6 is a perfect number because 1+2+3=6... 阅读全文
posted @ 2014-12-01 20:32 TomAndRainy 阅读(110) 评论(0) 推荐(0)
摘要: Triangle Minimal PathDifficulty:HardTopics:graph-theoryWrite a function which calculates the sum of the minimal path through a triangle. The triangle ... 阅读全文
posted @ 2014-12-01 20:31 TomAndRainy 阅读(160) 评论(0) 推荐(0)