My learnings after solving 700+ LeetCode problems, summarized in a few points.

2 years of experience curated in a thread.🧵 📌Consistency is more important than Intensity:

It happens very often with us that we lack in solving problems daily and get motivated once a week then solve 5 - 10 in one sitting and again forget for a few days.

Everything you need to master Data Structures and Algorithms from Scratch to Advanced.

Free and paid Courses what I had followed, a thread. 🧵 - Love Babber
youtube.com/playlist?list=…

Are you also tired of Time Limit Exceeded errors on your code??

Open this thread, I promise you'll not face it anymore. 🧵 We're solely talking about DSA problems not other things around.

This is one of the most important threads till now, it'll tell you how to find an estimate of the worst-case time complexity of an algorithm that can work in a problem. So read till the end, carefully. 🤯

Give me a minute, I'll tell you the proper way of approaching any @LeetCode problem which is above your level.

A thread 🧵 Bhaiya how should I approach a LeetCode problem?? How much time should I spend on a problem?? Should I see the solution or not? When should I see the solution?? 🤔

📢 Never make these mistakes on @LeetCode if you want to excel in problem solving from beginning to end.

A thread. 🧵 📌 If you're just starting out with DSA, don't directly go to LeetCode, your first destination should be HackerRank, you can learn any programming language there and practice the basic concepts in a structured manner.

Participated in @LeetCode contest 241 virtually, could solve only the 1st one during contest due to a minor mistake. But later finished 2nd and 3rd also on my own.

Let's see the problems: 1. Sum of All Subset XOR Totals

Top @LeetCode posts, you can't miss, regarding most important interview problems.

A thread. 🧵 1. Amazon interview problems:
leetcode.com/discuss/interv…

Participated in @LeetCode weekly virtual contest 244, got a rank 4100/10k users.

Let's see the problems: 1. Determine Whether Matrix Can Be Obtained By Rotation

Everything you need to master Data Structures and Algorithms from Scratch to Advanced.

Free and paid Courses what I've followed, a thread. 🧵 - Love Babbar
youtube.com/playlist?list=…

Participated in @LeetCode weekly contest 245 virtually, got a rank of 4k/8.5k.

Let's see the problems: 1st Problem: Redistribute Characters to Make All Strings Equal

Starting a 30 days of @LeetCode virtual contest, tried LeetCode weekly contest 246.

Let's see the problems: 1st Problem: Largest Odd Number in String

Binary Tree Inorder Traversal, today's @Leetcode challenge: Understanding the problem to intuition to solution, 3 approaches.

A thread 🧵
#100daysOfCode #leetcode Problem Statement-
Given the root of a binary tree, return the inorder traversal of its nodes' values.

Sometimes the biggest problem while applying off-campus is that, we don't know which company to apply??

300+ Companies paying 12+ LPA for SDE-1 role in India, checkout the list below.

A thread 👇 Acko
Adobe
Airbase
Airbnb
Airbus
Airtel X Labs
Ajio
Akamai
AlphaGrep
Alphonso
Amagi
Amazon
American Express
Angel One
Ansys
Anthem
Apna
AppDynamics
Arcesium
Arista
Atlassian
AutoDesk
Auzmor
Avail Finance
Avalara
BCG
BNY Mellon
Bain & Company

Construct String from Binary Tree, today's @LeetCode challenge explained in recursive and iterative method.

A thread 🧵
#100daysOfCode Problem Statement -
Given the root of a binary tree, construct a string consisting of parenthesis and integers from a binary tree with the preorder traversal way, and return it.

If you are inconsistent in practice, start 100 days of challenge and mention me I'll support you. Let's see today's solution,

0ms, faster than 100%, recursive approach of today's @Leetcode challenge.

A thread 🧵
#100daysOfCode Problem Statement-
Given the root of a binary tree, return the same tree where every subtree (of the given tree) not containing a 1 has been removed.

A subtree of a node node is node plus every node that is a descendant of node.

"429. N-ary Tree Level Order Traversal", today's @LeetCode challenge explained with DFS and BFS methods.

A thread 🧵
#100daysOfCode
#leetcode @LeetCode Problem Statement-
Given an n-ary tree, return the level order traversal of its nodes' values.

Nary-Tree input serialization is represented in their level order traversal, each group of children is separated by the null value (See examples).

It's better to solve one problem everyday instead of solving 10 once in a week.
~Consistency

In the series of solving daily @LeetCode challenges, let's see today's really interesting problem.

#100daysOfCode @LeetCode Problem statement:

You are given two string arrays words1 and words2.

A string b is a subset of string a if every letter in b occurs in a including multiplicity.

For example, "wrr" is a subset of "warrior" but is not a subset of "world".

"If you wanted to be rich in the 1800s you did it with Labour.
In the 1900s with Capital.
Now you do it with code."

@naval

In the series of solving @Leetcode daily challenges, we've an awesome problem today, 2 more days to finish a month, let's see how we can solve it. @naval @LeetCode Find and Replace Pattern:
Input: words = ["abc","deq","mee","aqq","dkd","ccc"], pattern = "abb"
Output: ["mee","aqq"]

I was going through the threads of @Julian, I found some on startups, writing, career, storytelling, audience building, mental models, thinking and more which are not less than a goldmine, if you are eager to learn.

I'm gonna read them one by one, you shouldn't miss this. 🧵 @Julian -> Another perspective of seeing the world, it's not how you think:

https://twitter.com/293815131/status/1348001394104537089

“A son asked his father, why the sun rises in the east, and sets in the west. His response? If it works, don’t touch!”. You know why? 🤔
Coz, his father was a programmer. 😅

Well, jokes apart, in the series of solving @LeetCode, let's see today's problem. @LeetCode We've an easy problem, "Valid Anagram": Given two strings s and t, return true if t is an anagram of s, and false otherwise.

An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once.

How to center a "div" in CSS??

Sometimes it becomes very confusing and takes a long time.

So, here are 10 ways to do that, learn in the simplest way possible and save time.

A thread🧵 We'll be using 2 HTML div's
-> parent container
-> child container

Our aim is to center the child container with respect to parent.
We have this initial HTML, CSS files.