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Posts tagged as “Interview question”

Swap Node Pairs

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Hello again everyone! Been sometime since I wrote here. Today I wanted to take a peek at a simple Linked List problem – Swap Node Pairs. Took me a bout…

Mergesort implementation

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I was asked to write a simple merge-sort implementation as the initial warm-up part of an interview. (Meaning knowing how to implement merge-sort is a must-have requirement rather than an…

Reverse Integer

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Today we are going to be visiting a very simple problem, which need some basic maths though. Given an integer, reverse it and return the reversed integer. Sample runs are:…

Find Longest Path in Tree

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Today’s question is going to be a quick one. We want to find longest path in tree. What does Path mean in a Tree context? The Tree wikipedia page and…

Print all sets of factors

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Today we will take a look at a problem I personally got asked in an interview! It is called “Print all sets of factors”. Basically, we will try to write…

Minimum edit distance

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Today I finally decided to write down a dynamic programming question. It’s very cliche and gets asked a lot in interviews. Given two words we want to find the minimum…

How to Implement QuickSort in Java

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Today, I wanted to take a look at a pretty common sorting technique. Indeed anyone with a Bachelor in CS is expected to know how to implement QuickSort in java…