LeetCode
HackerRank
Project Euler
Codewars
CodeForces
Exercism
interviewing.io
Coderbyte
ZipCheckup
usZIPCodes.org
Zipcodestack
ZipCheckup analyzes 50+ federal data sources (EPA, FEMA, CDC, USGS, Census) to generate free home safety reports for all 42,679 U.S. ZIP codes. Covers water quality, lead risk, PFAS contamination, flood risk, radon, wildfire, earthquake, mold, and 9 more safety categories. 283,000+ pages, updated daily.
LeetCode
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LeetCode is the best platform to help people practice solving coding problems and prepare for technical interviews. The main users are software engineers. LeetCode has over 1,900 questions covering many different programming concepts.
Based on our record, LeetCode seems to be a lot more popular than ZipCheckup. While we know about 543 links to LeetCode, we've tracked only 1 mention of ZipCheckup. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Category Tool URL How I used it General AI assistant ChatGPT Https://chatgpt.com Breaking down concepts, simulating interviewers, reviewing answers AI writing / reasoning Claude Https://claude.ai Refining behavioral stories and system design explanations Coding practice LeetCode Https://leetcode.com Core DSA practice and timed coding drills Coding explanations NeetCode Https://neetcode.io Pattern-based... - Source: dev.to / 2 months ago
Plain BST. Fine when input is random or the problem doesn't require worst-case guarantees. Tree problems on LeetCode typically assume balanced input and don't ask you to maintain balance yourself. - Source: dev.to / 3 months ago
Your preparation should not be random. Platforms like LeetCode, Codeforces, and GeeksforGeeks are toolsโbut what matters is how you use them. - Source: dev.to / 3 months ago
Bash /path/to/chrome-launcher.sh email001@gmail.com https://leetcode.com. - Source: dev.to / 4 months ago
AI-Powered Learning Tools: Consider using AI-driven platforms like Khan Academy or LeetCode that can personalize your learning experience based on your progress and skill level. - Source: dev.to / 10 months ago
I spent the last few months stitching it all together into one site. ZipCheckup. Type in a ZIP code, get a full home safety profile. 278,000 pages. 50+ data sources. Running on $5/month. - Source: dev.to / 4 months ago
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
usZIPCodes.org - Use our free ZIP Code Analysis Tool to find city, state, county, population, and timezone details for any U.S. ZIP code. Fast, accurate, and privacy-safe lookup.
Project Euler - Project Euler is a series of challenging mathematical/computer programming problems that will...
Zipcodestack - Free Zip Code API - Free Postal Code Validation | Zipcodestack
Codewars - Achieve code mastery through challenge.
CodeForces - Programming competitions and contests, programming community.