摘要: 难度 1700 题目 Codeforces: C. Number of Ways time limit per test 2 seconds memory limit per test 256 megabytes You've got array a[1], a[2], ..., a[n], con 阅读全文
posted @ 2021-07-23 23:56 伊莉雅碳 阅读(44) 评论(0) 推荐(0)