2019年8月6日
2019hdu暑假多校第五场1007 permutation 2 HDU - 6630
摘要： You are given three positive integers N,x,y.Please calculate how many permutations of 1∼N satisfies the following conditions (We denote the i-th numbe 阅读全文
posted @ 2019-08-06 11:31 一只球球 阅读(188) 评论(0) 推荐(0)
2019hdu暑假多校第5场1004 equation HDU - 6627
摘要： You are given two integers N,CN,C and two integer sequences aa and bb of length NN. The sequences are indexed from 11 to NN. Please solve the followin 阅读全文
posted @ 2019-08-06 10:11 一只球球 阅读(163) 评论(0) 推荐(1)