Serialize and deserialize a collection of strings into a single one.
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Round 1 Given a bitmap, use a quaTree data structure to represent the bitmap. The maps are all squares with black or white pixels and the length of the map is 2^n (you can always divide the map into 4 smaller parts). Then give you a root node of a quaTree, calculate the total black pixel in this map. Follow up: Given two root node, generate the intersection of these two maps.
A array : 1 3 0 2 4 9 input: dest-node: A0 output: all the source nodes: (A1, A3, A4) Each element in this array means the steps it can take. Each element can go left or right. So A[1] and A[4] can reach A[0]. A[1] can reach A[4], A[4] can reach A[0], so A[1] can reach A[0]. Output the index of element which can reach A[0].
consider one situation, 9,9,9,9 to 1,0,0,0,0.
Write a code that show all possible permutation from a given String.
Q: List all comments in the given segment of codes.
My processor is consuming too much power, write a program to reduce processor power consumption.
Extremely simple questions. First-round had a question like, given an object array, combine objects with one more matching fields and return the resulting array. The second round was behavioural and one question on removing trailing spaces. They don't ask any in-depth technical quesions.
Standard algorithms and data structures questions.
How to process a big number that cannot be stored in any data structure. How you would represent it.
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