Codeforces Round #633 (Div. 2)D Edge Weight Assignment(构造、树的权值异或)

Edge Weight Assignmentc++ time limit per testgit 1 secondthis memory limit per testspa 256 megabytes3d inputcode standard inputorm outputblog standard outputip You have unweighted tree of nn vertices.
相关文章
相关标签/搜索