
Codechef
HackerRank
AlgoExpert.io
CodeForces
LeetCode
Coderbyte
Interview Cake
Codewars
Hackster
Instructables
HackADay
Gumroad
Teach by Mozilla
GrabCAD
Hackr.io
Topcoder
CodeChef is a not-for-profit educational initiative started by Directi more than a decade ago. We started with a dream of seeing an Indian team winning a gold medal at the ACM ICPC World Finals. In its quest for the same, CodeChef has built a self-driven community of the world's best programmers. Today more than 1.3 million competitive programmers from 180+ countries learn from CodeChef. CodeChef has been hosting monthly programming contests regularly for 10 years now. Its platform has assessed 92 million+ code submissions to date, and over 30000 organizations are being impacted by CodeCheffers worldwide. It also organizes SnackDown - one of the world's largest global programming competition whose last edition drew participation from 140+ countries. Since 2017, CodeChef has started providing India's only industry-ready certification in Data Structures and Algorithms, and 1800+ programmers have been certified under the same.
Codechef
HacksterBased on our record, Hackster should be more popular than Codechef. It has been mentiond 26 times since March 2021. 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.
Have you heard of codeforces.com, atcoder.jp, codechef.com, etc? Source: over 2 years ago
Leetcode is good to learn basic algorithms because problem statements are usually straightforward. Competitive programming has much wider range of problems. Most popular sites for cp are codeforces.com , atcoder.jp, codechef.com . Source: over 2 years ago
Learn Java with hands-on experience. I personally used codingbat.com a lot, but I've heard good things about codechef.com, which appears to even have a competitive option. Source: over 3 years ago
For practicing algorithms, use any of the freely available websites like https://hackerrank.com https://codechef.com https://projecteuler.net A structured set of practice problems are available at https://www.interviewbit.com/courses/programming/ Avoid https://geeksforgeeks.org because it has a ton of material but very poor quality control. Source: about 4 years ago
These all have sample problems to solve Hackerrank.com edabit.com codewars.com codechef.com and there are tons more. Best of luck to you. I am at about the same level myself. I really like these sites. Source: over 4 years ago
You'll find on our website a lot of info regarding this laptop + we are working on a Hackster.io page to share our journey through devlogs :). Source: almost 3 years ago
Note that I could not find much documentation on references written on these components and that I am pretty new to electronics but it's something I'm interested in and I love to experiment (I have already went through hackster.io and instructables.com tutorials). Source: about 3 years ago
Something like the Gemma M0 or one of the Feather boards would work pretty well depending on what kind of connectivity you want. They both have JST connectors to connect a rechargable battery and the Gemma already has a single NeoPixel onboard. The Learn section on Adafruit or hackster.io both have excellent guides on running projects with either board. Source: over 3 years ago
I say this because learning Python and R are cool, but learning them in a traditional academic framework might not be as fulfilling or as productive as looking up some of the wild projects on hackaday.com, hackster.io, and instructables.com. If you start looking at these, they can really broaden your lens of what is possible, while at the same time offering projects that are more fun than rote coding exercises. Source: over 3 years ago
The website https://randomnerdtutorials.com has a lot of good stuff to get you going. A lot of the more advanced projects are on https://hackster.io. Source: over 3 years ago
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Instructables - DIY How To Make Instructions
AlgoExpert.io - A better way to prep for tech interviews
HackADay - Hackaday.io is a platform for people who like to build things.
CodeForces - Programming competitions and contests, programming community.
Gumroad - An all-in-one solution to sell your work and grow your audience.