Rod cutting do problem .
Software Engineer Intern Interview Questions
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The collision issue of hashtable
What kind of script language you'll use to delete all SSN in a large amount of files in distributed system? How to delete them?
A complex tree question which involved implementation as queue and Linklist both
There was not a really difficult question. The first question was based on design classes. And the second one was on checking whether a binary tree is a binary search tree. One question per round. I screwed up the second question.. so did not get the offer.
No difficult questions, really. Tricky in a way maybe, if you miss a detail, but if you are alert, you will sail through.
Java questions
The questions were something on the lines of, - Given a tree, output levelwise nodes (Ans: It was actually the BFS algorithm, but I didn't realize it at that time) - Find first unique substring (In O(n)) (Ans: Use counting sort variant) - Convert an array into balanced binary search tree (Ans: First sort the array, then use recursive algorithm after splitting the array at mid, and using the mid as a node) - From two arrays N and M find the combinations that add up to say X (Ans: I was drained by the time second interview started, so the only answer I came up with was of O(n2) complexity i.e. using two FOR loops)
Two whiteboard coding questions. One about BST and one about string manipulation.
You are given the putChar(int) function in C (accepts ASCII code, prints on the screen the character). Write a function putInt(int) that accepts an int and prints on the screen the same int by only using the putChar(int) function.
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