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Prakhar SrivastavaMay 26, 2026 • 7 min read
Binary Tree Recursion in Interviews: The Call Stack Diagnostic
I've watched plenty of engineers explain binary tree traversals on a whiteboard and then freeze five...
#learning#leetcode#interview#algorithms
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Prakhar SrivastavaMay 25, 2026 • 7 min read
Binary Tree Interview Problems: 6 Traversal Patterns, 15 Problems
The default tree prep is sorting LeetCode's tree tag by acceptance rate, doing the top 40, and hopin...
#algorithms#career#leetcode#beginners
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Prakhar SrivastavaMay 25, 2026 • 7 min read
Binary Search Tree Explained: All Operations From One Rule
Most BST tutorials teach search, insert, and delete as three procedures. You memorise one, then the....
#algorithms#career#leetcode#datastructures
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Yash GandhiMay 30, 2026 • 7 min read
Frequency Map Pattern — LeetCode #242: Valid Anagram
The first time a hash map stores more than existence — and the universal trick of tracking differenc...
#leetcode#dsa#typescript#python
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Aryan SubudhiMay 25, 2026 • 6 min read
LeetCode Solution: 1. Two Sum
Cracking LeetCode 1: Two Sum - Your First Step into Algorithm Mastery! Hey everyone! 👋...
#leetcode#dsa#programming#tutorial
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Prakhar SrivastavaMay 28, 2026 • 5 min read
Tree Traversal: Why the Order You Pick Is a Data Flow Decision
Tree traversal usually gets taught as three separate algorithms to memorize: preorder, inorder,...
#leetcode#algorithms#career#learning
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HommiesMay 31, 2026 • 6 min read
LeetCode Solution: 1. Two Sum
Two Sum 🟢 Easy: Your First Step into LeetCode Magic! 2. Problem Explanation: The Quest.....
#leetcode#dsa#programming#tutorial
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HommiesMay 31, 2026 • 6 min read
LeetCode Solution: 17. Letter Combinations of a Phone Number
Cracking the Code: Phone Number Letter Combinations (LeetCode 17) 🟡 Medium Author Account:...
#leetcode#dsa#programming#tutorial
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Aryan SubudhiMay 25, 2026 • 6 min read
LeetCode Solution: 5. Longest Palindromic Substring
5. Longest Palindromic Substring: Unraveling the Palindromic Puzzle 🧩 Hey fellow coders! 👋...
#leetcode#dsa#programming#tutorial
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Skill FlowMay 30, 2026 • 8 min read
The Blind 75 Problem List Is Outdated in 2026. Here Is What to Practice Instead.
TL;DR: The Blind 75 was a revolutionary resource when it was published, and it still has value today...
#algorithms#career#interview#leetcode
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HommiesMay 31, 2026 • 6 min read
LeetCode Solution: 2. Add Two Numbers
Add Two Numbers 🟡 Medium: Summing Up Linked Lists Like a Pro! Hey there, aspiring algorithm...
#leetcode#dsa#programming#tutorial
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Blogger HommieMay 31, 2026 • 6 min read
LeetCode Solution: 3. Longest Substring Without Repeating Characters
3. Longest Substring Without Repeating Characters 🟡 Medium Hey Dev.to fam! 👋 Today, we're...
#leetcode#dsa#programming#tutorial
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Ark codeMay 30, 2026 • 2 min read
Time Need To Rearrange Binary String
https://leetcode.com/problems/time-needed-to-rearrange-a-binary-string/description/ 🚀 O(n...
#algorithms#coding#cpp#leetcode
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Ark codeMay 30, 2026 • 1 min read
🚨 DFS Debugging Challenge for DSA Enthusiasts 🚨
I came across this implementation of Number of Islands using DFS. At first glance, the logic seems.....
#algorithms#cpp#leetcode#performance
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Naveensivam SMay 30, 2026 • 2 min read
Linkedlist leetcode
cloning the ll into another using deep copy initially we use hashmap to implement it...
#leetcode#interview#techtalks
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shipra ShankhwarMay 25, 2026 • 1 min read
Leetcode QOTD:- 1871. Jump Game VII
Convert the string into a char array so reachable positions can be modified directly. Start from...
#programming#leetcode#dsa#coding
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shipra ShankhwarMay 26, 2026 • 1 min read
Leetcode QOTD:- 3120. Count the Number of Special Characters I
Use two integers as bit masks: lower stores lowercase letters present. upper stores uppercase...
#dsa#leetcode#coding
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Skill FlowMay 29, 2026 • 6 min read
Why Grinding LeetCode Isn't Enough in 2026 - The Case for Adaptive Interview Prep
TL;DR: Solving random LeetCode problems builds pattern recognition, but it doesn't prepare you for.....
#career#interview#learning#leetcode
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HommiesMay 31, 2026 • 5 min read
LeetCode Solution: 15. 3Sum
Cracking the Code: Solving LeetCode's 3Sum Problem with Two Pointers 🟡 Medium Hey there,...
#leetcode#dsa#programming#tutorial
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ramnayanMay 30, 2026 • 2 min read
2487. Remove Nodes From Linked List
In this post i'm gone explain liked list an famous leetcode problem that is "Remove Nodes from...
#leetcode#javascript#algorithms#coding
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MD ARIFUL HAQUEMay 31, 2026 • 4 min read
3161. Block Placement Queries
3161. Block Placement Queries Difficulty: Hard Topics: Principal, Array, Binary Search, Binary...
#php#leetcode#algorithms#programming
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Naveensivam SMay 30, 2026 • 1 min read
trapping rainwater
Problem: Trapping rain water. code: class Solution: def trap(self,...
#leetcode#interview#career
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MD ARIFUL HAQUEMay 31, 2026 • 4 min read
2126. Destroying Asteroids
2126. Destroying Asteroids Difficulty: Medium Topics: Staff, Array, Greedy, Sorting, Weekly Contes...
#php#leetcode#algorithms#programming
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MD ARIFUL HAQUEMay 27, 2026 • 3 min read
3121. Count the Number of Special Characters II
3121. Count the Number of Special Characters II Difficulty: Medium Topics: Senior, Hash Table,...
#php#leetcode#algorithms#programming
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