LeetCode
HackerRank
Project Euler
Codewars
CodeForces
Exercism
interviewing.io
Coderbyte
ChatPDF
PDF.ai
ChatGPT
ChatDOC
AskYourPDF
Docalysis
ChatDox
Humata AI
For Researchers Explore scientific papers, academic articles, and books to get the information you need for your research.
For Students Study for exams, get help with homework, and answer multiple choice questions faster than your classmates.
For Professionals Navigate legal contracts, financial reports, manuals, and training material. Ask questions to any PDF to stay ahead.
Multi-File Chats Create folders to organize your files and chat with multiple PDFs in one single conversation.
Any Language Works worldwide! ChatPDF accepts PDFs in any language and can chat in any language.
Cited Sources Built-in citations anchor responses to PDF references. No more page-by-page searching.
LeetCode ChatPDFLeetCode 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 ChatPDF. While we know about 543 links to LeetCode, we've tracked only 17 mentions of ChatPDF. 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 / about 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 / 2 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 think my app still can't beat chatpdf.com. :(. Source: about 3 years ago
Quoting directly from the FAQ popup on chatpdf.com:. Source: about 3 years ago
Try using chatpdf.com I don't really use documents that much. Source: about 3 years ago
I've asked ChatGPT to create excel formulas for me, that's the extent of my experience here. As far as analyzing an actual spreadsheet data, I believe the beta OpenAI tool, code interpreter, can do that. I don't have access to that, however. I have more experience with PDFs. There are several plug-ins for interacting with PDFs if you are a ChatGPT plus subscriber. For free, you can open a PDF in the Microsoft... Source: about 3 years ago
ChatPdf: Free version supports 120 pages/PDF, 10 MB/PDF, 3 PDFs/day, and 50 questions/day. Source: about 3 years ago
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
PDF.ai - Chat with any document
Project Euler - Project Euler is a series of challenging mathematical/computer programming problems that will...
ChatGPT - ChatGPT is a powerful, open-source language model.
Codewars - Achieve code mastery through challenge.
ChatDOC - Chat with documents.