There are many great websites to learn data structures and algorithms (DSA), but here are a few of the most popular and well-respected:
GeeksforGeeks: GeeksforGeeks is a comprehensive resource for learning DSA, with a wide variety of tutorials, articles, and practice problems. It is a great place to start for beginners who want to get a solid foundation in the basics of DSA.
LeetCode: LeetCode is a popular platform for practicing DSA problems. It has a large collection of problems ranging from easy to difficult, and it provides detailed solutions for each problem. LeetCode is a great resource for preparing for technical interviews.
HackerRank: HackerRank is another popular platform for practicing DSA problems. It has a similar format to LeetCode, but it also offers a wider variety of coding challenges, including some that are specifically designed for job interviews. HackerRank also has a thriving community of coders who can help you learn and improve your skills.
CodeChef: CodeChef is a platform for participating in coding competitions. It hosts a variety of competitions each month, ranging from beginner to expert level. CodeChef is a great way to test your DSA skills and learn from other coders.
CodeForces: CodeForces is another platform for participating in coding competitions. It is known for its challenging problems and its strong community of coders. CodeForces is a great resource for experienced coders who want to improve their skills and compete with the best in the world.
These are just a few of the many great websites to learn DSA. The best website for you will depend on your learning style and goals. If you are a beginner, I recommend starting with GeeksforGeeks or LeetCode. If you are looking for a more challenging resource, I recommend HackerRank or CodeForces.