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.
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Python Principles might be a bit more popular than Codechef. We know about 10 links to it since March 2021 and only 7 links to 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.
Have you heard of codeforces.com, atcoder.jp, codechef.com, etc? Source: over 1 year 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 1 year 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 2 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: almost 3 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 3 years ago
I am learning python by this website pythonprinciples.com idk how known this is but I think its great. Anyway this is the code they are giving and I dont think it makes much sense. Source: about 2 years ago
This website has a bunch of practice exercises for Python. The premium membership is free. Source: about 2 years ago
Python Principles < this one might seem like it costs money but it is in fact free. Source: over 2 years ago
So yeah, I starting learning Python about 3 months ago. I completed the lessons and challenges at pythonprinciples.com and also went through a lot the lessons on Codecademy (before my free trial ran out). I also found NetworkChucks YouTube lessons helpful. Source: over 2 years ago
So I started with this video and then went and finished all the lessons in https://pythonprinciples.com/ which is what really boosted my confidence a bit. Source: about 3 years ago
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CodeForces - Programming competitions and contests, programming community.
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