2013年10月5日
B. Jeff and Periods(cf)
摘要： B. Jeff and Periodstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOne day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequence. For that, he needs to find all values of x, for which 阅读全文
posted @ 2013-10-05 16:35 N_ll 阅读(306) 评论(0) 推荐(0)
A. Jeff and Digits(cf)
摘要： A. Jeff and Digitstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputJeff's got n cards, each card contains either digit 0, or digit 5. Jeff can choose several cards and put them in a line so that he gets some number. What is the largest possible 阅读全文
posted @ 2013-10-05 11:42 N_ll 阅读(210) 评论(0) 推荐(0)