# APRIL LONG CHALLENGE 2019 [SUBREM] - Clarification

Can anybody explain the test case how is the output is -4? It seems correct answer would be -14 if we do not do any remove operation (k=0). I posted my doubt on the actual problem page but its almost 3 days no reply from Admin. This is something not expected for active challenge.

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if we remove the 2nd node then 3rd node will be deleted(as it is in its subtree).
so the node left is only 1st node.
1-(15*1)=-14
k=1

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tree is like

1->2->3

having wt as 1, -5, -10 respectively

if 2nd node is removed then profit is

(sum of remaining nodes) - (X)(k) = (1) - (5)*(1) = -4

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I see. Sorry for the confusion. I was removing just a single node. My bad. Thanks.

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I understand your concern but I posted the comment 3 days back in the actual comment section of the problem but did not get any response. That is why I posted it here.

yeah no one replies there
i know they canâ€™t ans all of them but they are answering none

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