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You are given a list of call stacks, which represents the call stack at a particular instance of time starting from 0 ms, say at every ms. You need to create a call graph from this data, which is a hierarchical structure and also provide the time in ms, that each call in the hierarchy took. After I struggled a bit, the question was further simplified where I had to find the number of times a particular method is called and also provide a parent-child hierarchy between the calls. So basically, the input was a list of stacks and the output was a tree graph with count of each method.
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Software Developer In Test

Interviewed at AppDynamics

3.8★
Oct 15, 2013

You are given a list of call stacks, which represents the call stack at a particular instance of time starting from 0 ms, say at every ms. You need to create a call graph from this data, which is a hierarchical structure and also provide the time in ms, that each call in the hierarchy took. After I struggled a bit, the question was further simplified where I had to find the number of times a particular method is called and also provide a parent-child hierarchy between the calls. So basically, the input was a list of stacks and the output was a tree graph with count of each method.

1. Longest substring palindrome from a string 2.Generate parentheses Input -- n=1 output -- () Input -- n=2 output -- ()() (()) 3.input -- (A, D), (B, E), (F, G), (D, P) (P, O) (L, A) Apple Output -- true Only one character from each set to from the word 4. Find the missing number from an consecutive numbers of array input -- {1,2,3,5,} output -- 4
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Software Development Engineer In Test (SDET)

Interviewed at AppDynamics

3.8★
Feb 27, 2021

1. Longest substring palindrome from a string 2.Generate parentheses Input -- n=1 output -- () Input -- n=2 output -- ()() (()) 3.input -- (A, D), (B, E), (F, G), (D, P) (P, O) (L, A) Apple Output -- true Only one character from each set to from the word 4. Find the missing number from an consecutive numbers of array input -- {1,2,3,5,} output -- 4

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