摘要: https://codeforces.com/contest/1228/problem/A input 121 130 input output 123 output input 98766 100000 input output -1 output https://codeforces.com/c 阅读全文
posted @ 2019-10-01 02:46 163467 阅读(337) 评论(0) 推荐(0) 编辑