RRidainridacode.hashnode.devThe "Grind LeetCode" Advice is Mathematically Stupid (I Scraped 1,500 Questions to Prove It)It’s a Tuesday, about 2:30 PM, i was trying to move migrate a .NET MVC to a CQRS model in the company i was at the time at when I hear the generic ping from my personal email. I alt-tab. It is from 1d ago·5 min read
AWAlex Wanginleetcopilot.hashnode.devBest Free Coding Interview Prep Resources in 2026 (Complete List)Originally published on LeetCopilot Blog You don't need to spend hundreds on interview prep. Here are the best free resources for DSA, system design, and behavioral interviews. I spent $847 on interview prep courses before realizing this: 95% of w...4d ago·24 min read
YYashrajinyashrajxdev.blogHeaps & Priority Queue in DSAA Heap is a specialized tree-based data structure that satisfies the Heap Property and is mainly used to implement Priority Queues and efficient sorting algorithms like Heap Sort. It is one of the mos6d ago·6 min read
TVThrishali Vittalinmyleetcode.hashnode.devDay 3 – Roman to Integer | My LeetCode Journey Today is Day 3 of my daily LeetCode practice journey.The problem I solved today is Roman to Integer (Easy). Problem Summary I was given a Roman numeral string and needed to convert it into an integer.Mar 6·2 min read
TVThrishali Vittalinmyleetcode.hashnode.devDay 2 – Palindrome Number | My LeetCode Journey Today is Day 2 of my daily LeetCode practice journey.The problem I solved today is Palindrome Number (Easy). Problem Summary I was given an integer x and needed to check whether it is a palindrome.A pMar 5·3 min read
TVThrishali Vittalinmyleetcode.hashnode.devDay1 of MyLeetcode JourneyToday marks the start of a new learning journey in my programming life.I have decided to practice LeetCode problems every single day to improve my logic building, problem-solving skills, and consistenMar 4·2 min read
AWAlex Wanginleetcopilot.hashnode.devYou See the Pattern But Still Can't Code It? Fix That GapOriginally published on LeetCopilot Blog Recognizing 'sliding window' means nothing if you freeze when coding it. Here's how to bridge the gap between pattern spotting and implementation. You read the problem. Within 30 seconds, you think: "This i...Mar 1·11 min read
Hhimanshuinblogs-himanshu.hashnode.devDay 20 - Search in Rotated Sorted ArrayQuestion You are given an array of length n which was originally sorted in ascending order. It has now been rotated between 1 and n times. For example, the array nums = [1,2,3,4,5,6] might become: [3Feb 28·3 min read
AWAlex Wanginleetcopilot.hashnode.devHow to Solve LeetCode Problems Faster: The Complete Speed GuideOriginally published on LeetCopilot Blog Struggling with time on LeetCode? Here's how to improve your problem-solving speed with realistic benchmarks, targeted techniques, and a 4-week improvement plan. I used to take 90 minutes to solve Medium pr...Feb 27·12 min read
AWAlex Wanginleetcopilot.hashnode.devBuild a LeetCode Notes System That Becomes Your Personal Knowledge BaseOriginally published on LeetCopilot Blog Stop scattering solutions across tabs. Create a reusable notes template, add spaced repetition, and turn every solved problem into a searchable interview asset. Why Ad-Hoc Notes Don't Stick Copy-pasting ful...Feb 26·7 min read
