terserah's blog

[ASK] Online node addition in a tree
By terserah, history, 7 years ago, In English

Hello, i am struggling to solve this problem from SPOJ. Can anybody give me some hints? Thanks in advance!

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7 years ago, # |
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You could change the problem by preprocessing the tree and answering how many nodes in a subtree have a tag  ≤  k

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    7 years ago, # ^ |
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    7 years ago, # ^ |
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    i think we can't preprocess the tree, because we have to answer the query online. CMIIW

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