#入度

hdu 1325 Is It A Tree? (树、node = edge + 1、入度 <= 1、空树)

IsItATree?TimeLimit:2000/1000MS(Java/Others)   MemoryLimit:65536/32768K(Java/Others)TotalSubmission(s):29483   AcceptedSubmission(...
代码星球 ·2020-06-08