
Manuzoid
ManualAgent
Manuals Online
Internet Archive Manual Library
Manula
Paligo
Dozuki
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LeetCode
Codility
CodeSignal
iMocha
HackerEarth
Codewars
TestGorilla
HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Which is more popular?
Based on our record, HackerRank should be more popular than ManualsLib. It has been mentioned 67 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | manualslib.com | hackerrank.com |
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Recommended for
HackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.
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Tech Tips for Non-Tech People | Use Manualslib to find a user manual for your electronic devices.
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What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
HackerRank’s challenges cover a wide range of topics and difficulty levels, allowing developers to enhance their problem-solving skills and learn new algorithms and data structures. The competitive nature of...
HackerRank offers a wide array of challenges across various domains such as algorithms, mathematics, SQL, and functional programming. Its interface is user-friendly, and the platform provides detailed feedback on...
Recommendations tracked on public social media and blogs since March 2021.


I had to open up the "chat" and accept. I received no notification. I responded there but it appears that screenshot is from manualslib.com which doesn't have a manual for my bike. Source: about 3 years ago
By the time the 514 was built, Singer had gone heavily into plastic gears, and the 514 has several. They usually last 30-40 years, though with excellent care they may last a bit longer. Trouble is that once the gears have to be... Source: about 3 years ago
As a total aside. The SY77 and SY99 op & midi manuals are much better on manualslib.com than the official Yamaha website with significantly better diagram scan quality + sort of okay OCR. Source: over 3 years ago
This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other people’s solutions. - Source: dev.to / about 1 year ago
Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / over 2 years ago
I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice... Source: almost 3 years ago
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