摘要: 题目列表 A - Permutation Forgery B - Array Cancellation C - Balanced Bitstring D - Tree Tag **Practice link:**https://codeforces.ml/contest/1405 A - Permu 阅读全文
posted @ 2020-09-07 17:30 hachuochuo 阅读(158) 评论(0) 推荐(0) 编辑