online judge solutions
Codeforces
https://freecodecenter.com/online-judge-solutions/codeforces-problem-solution/
Codeforces is a popular online platform for competitive programming, which hosts regular coding competitions and challenges for programmers of all levels. It was founded in 2009 by a group of Russian programmers and has since grown into a global community of over 1.5 million registered users.
The platform offers a variety of coding challenges, ranging from algorithmic problems to more specialized topics such as machine learning and artificial intelligence. Users can compete in individual or team contests, participate in virtual competitions, and even create their own contests.
BEECROWD Problems Solution/URI Solution
https://freecodecenter.com/online-judge-solutions/beecrowd-problems/