first one: calculate postfix expression second: you get a stream of nums as input return true if value had appeared previously on stream , stream can be infinite
Software Engineer Internship Interview Questions
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What Is the Trie ?
Asked 2 DSA question, 1st word search on leetcode hard difficulty, 2nd was 01 matrix medium difficulty, get deep into code, coded for different scenarios of Optimization as asked, gone through projects got the live demo of them
Tell us a challenge you faced in your current job
Reverse a linked list
I had a bitwise conversion question for y on campus interview. Create a method that finds the next sparse number given a number.
Given a binary tree, each node has a null "next node" , which points to the next node in the same level (left to right). Update the given tree so that each node has a value in their "next" field. Level 2/Bonus: do it in O(1) time, using iteration instead of recursion.
No questions about coding. Only understanding the issue of a problem.
Reverse a linked list recursively
How to find the starting position of a linked list if its contains a cycle.
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