链接:https://www.nowcoder.com/acm/contest/106/J来源:牛客网 时间限制:C/C++ 1秒,其他语言2秒 空间限制:C/C++ 32768K,其他语言65536K 64bit IO Format: %lld 题目描述 It’s universally acknowledged that there’re innumerable trees in the campus of HUST. And there are many different types o…