yjt9299的博客

A - Double Kings Time Limit: 2000/1000MS (Java/Others)    Memory Limit: 128000/64000KB (Java/Others) Submit Status Problem Description Our country is tree-like structure, that is to say th

B - Cut Time Limit: 4000/2000MS (Java/Others)    Memory Limit: 128000/64000KB (Java/Others) Submit Status Problem Description Cut(in another word, remove) edges the given tree \(T\) so tha

Each New Year Timofey and his friends cut down a tree of n vertices and bring it home. After that they paint all the n its vertices, so that the i-th vertex gets color ci. Now it's time for Timofey

Auxiliary SetTime Limit: 9000/4500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2254    Accepted Submission(s): 652Problem DescriptionGiven a rooted tree with n ve...

链接：https://www.nowcoder.com/acm/contest/106/A来源：牛客网It’s universally acknowledged that there’re innumerable trees in the campus of HUST.   One day, zjh is wandering in the campus,and he finds a t...