hdu 5678 ztr loves trees (給一顆有根樹,樹上的每個節點有一個權值,每次詢問某個子樹中全部權值的中位數)

ztr loves trees Time Limit: 6000/2500 MS (Java/Others)    Memory Limit: 131072/65536 K (Java/Others) Total Submission(s): 296    Accepted Submission(s): 46 Problem Description Super Deity ztr likes tr
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