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you are given an unsorted array of integers which are showing the price of a stock during the time. you wanna buy some amount of the stocks at some point, and sell them at a later time, so that to maximize your revenue. Asked for O(n) algorithm.
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Software Developer

Interviewed at Broadway Technology

4.2★
Oct 15, 2012

you are given an unsorted array of integers which are showing the price of a stock during the time. you wanna buy some amount of the stocks at some point, and sell them at a later time, so that to maximize your revenue. Asked for O(n) algorithm.

1. Lock and Unlock a node of the given tree, Structure of the tree: one root multiple childs (>2). problem: find solution for locking and unlocking the nodes logic with log(N) complexity. Lock(node): returns boolean we can lock the node if and only if ancestor nodes and descendant nodes are not locked. if they are locked then return false else return true Unlock(node): returns boolean if node is already locked then unlock it and return true else return false
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Software Developer

Interviewed at JUSPAY

4★
Dec 28, 2019

1. Lock and Unlock a node of the given tree, Structure of the tree: one root multiple childs (>2). problem: find solution for locking and unlocking the nodes logic with log(N) complexity. Lock(node): returns boolean we can lock the node if and only if ancestor nodes and descendant nodes are not locked. if they are locked then return false else return true Unlock(node): returns boolean if node is already locked then unlock it and return true else return false

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