Failing to answer Leetcode questions doesn't mean anything is wrong with you. Many will be difficult without spending a lot of time practicing similar problems.

Failing to answer Leetcode questions doesn't mean anything is wrong with you. Many will be difficult without spending a lot of time practicing similar problems. If they were "easy"-ish Leetcode questions, it might not be a bad idea to practice some basics. Many interviewers are looking at your thought process and ability to transfer your ideas into, not just whether or not you solved the problem.