Snippet code, help with coding code samples, solution to interview questions in Python Java, PHP etc.
“Design LRU cache” is a very typical interview problem asked in FAANG. This question shows the design capability of the candidate and how he selects the datatype while programming. Caches are an integral component of any computing system. These are tiny containers that store data fragments to make them accessible easily thus, reducing computing time. …
Leetcode 146. LRU Cache: Multiple Solutions in Python Code Read More »
indexerror: list index out of range usually happens when python application tries to access index that doesn’t exist in the list.
Count good nodes in a binary tree, according to LeatCode this is Microsoft’s most asked interview question of 2021 so far. I think it’s a pretty good problem to understand. A lot of basic Tree fundamental knowledge can be gained from this problem. So we’re given the root of a binary tree that is going …
Leetcode: Count Good Nodes in Binary Tree in Python Read More »
Data structure dictionary in Python before 3.7 version has no particular order, which makes the process of sorting a tedious job for most beginners Sorting data is not a new thing for us. We perform this operation as we buy products online, set official and unofficial appointments, or simply stack our wearables in a wardrobe. …
What is the best way to sort Python dictionary by Value Read More »
Two Sum problem is considered easy and is frequently asked in Amazon phone interviews. We will see how we can start with a brute force solution and try to improve the code by introducing more data structures. Problem Statement: Given an array of integers nums and an integer target return indices of the two numbers …
Leetcode 1: Two Sum problem – Multiple Solutions in Python Read More »
This post shows how to create an editable table in pure JavaScript and using the jQuery plugin. There are various features that you can add to the editable table, for example; Let’s start and see some of these in working live demos Editable cell in HTML table Using jquery This jQuery code will make the …
Creating random number or string in Python is way more easier then you think. random module can be used to generate random numbers in Python. Combining String module with random module, we can generate random strings in Python. I have tried these two modules myself in multiple programs to generate random numbers and strings. we …
If you are working with files and directories in Python, sometimes you ask these question: What is the best way to list all files and directories in Python How can I add all the files in a List in Python How can I add all the directories in a List in Python How to visit …
There are multiple ways you can send an email to customers retrieved from database. In this article I’ll explain the code that I wrote to bulk send an email to the list of customers retrieved from MySQL database. PHP script to send an Email Smallest code you can write to send an email using PHP …
