Project Euler
LeetCode
Exercism.io
Codewars
CodeSignal
HackerRank
CodinGame
CodeForces
Codechef
LeetCode
HackerRank
Coderbyte
AlgoExpert.io
Codewars
CodeForces
Interview Cake
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.
Project Euler CodechefBased on our record, Project Euler seems to be a lot more popular than Codechef. While we know about 405 links to Project Euler, we've tracked only 7 mentions of Codechef. 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.
Practice Regularly: Utilize coding challenge platforms such as LeetCode and HackerRank to practice coding regularly. Additionally, websites like Project Euler offer mathematical challenges that can sharpen your problem-solving skills. - Source: dev.to / 21 days ago
A coworker used to solve Project Euler[1] problems using SQL while they waited for DB indexes to rebuild or tables to restore from backup in the middle of the night. [1] https://projecteuler.net/. - Source: Hacker News / 2 months ago
Coding Challenges: Platforms like Project Euler or CodeSignal offer a variety of problems that encourage logical thinking and algorithmic problem-solving. - Source: dev.to / 4 months ago
If you want some recommendations on how to learn it best, I really suggest jsut using it and googling how to do the things you dont know how to do as you work. Right now, the advent of code is happening and its one of the best ways to practice and learn: https://adventofcode.com/ Another thing you might want to try is Project Euler: https://projecteuler.net. Source: 5 months ago
Https://projecteuler.net/ is a good place to get some practice projects. Source: 5 months ago
Have you heard of codeforces.com, atcoder.jp, codechef.com, etc? Source: 5 months 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: 5 months 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: about 1 year 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: almost 2 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: about 2 years ago
LeetCode - Practice and level up your development skills and prepare for technical interviews.
Exercism.io - Download and solve practice problems in over 30 different languages.
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Codewars - Achieve code mastery through challenge.
Coderbyte - Coderbyte is a place built for anyone to practice and perfect their programming skills.
CodeSignal - CodeSignal is the leading assessment platform for technical hiring.