摘要: 题意 给出一个序列 \(a_1,a_2,a_3,\dots ,a_n\),需要构造两个序列 \(b\) 和 \(c\) ,并且满足下列要求: \(b_i+c_i=a_i\ (1\leq i \leq n)\) $1<i \leq n,b_i\geq b_$ $1<i \leq n,c_i\leq c 阅读全文
posted @ 2020-09-13 15:46 xzx9 阅读(220) 评论(0) 推荐(0)