1) Jumping straight into coding:

One common mistake is to jump straight into coding without fully understanding the problem. It's important to take the time to read and understand the problem statement and constraints before starting to code.

2) Ignoring edge cases:

Newbies often overlook edge cases, leading to incorrect solutions. It's important to consider edge cases and test the solution thoroughly to ensure it works for all possible inputs.

3) Not considering time and space complexity:

Newbies may focus solely on finding a solution without considering the time and space complexity. It's important to understand the trade-offs between time and space complexity and choose the most efficient solution.

4) Not using appropriate data structures:

Newbies may not be familiar with the appropriate data structures to use for a given problem. It's important to have a good understanding of data structures and algorithms to choose the most appropriate one for a given problem.

5) Not breaking down the problem into smaller parts:

Newbies may struggle with solving a problem as a whole and not breaking it down into smaller parts. It's important to break down the problem into smaller sub-problems and solve them one by one.

6) Giving up too quickly:

Newbies may get stuck on a problem and give up too quickly. It's important to keep trying and learning from mistakes, even if it takes multiple attempts to solve a problem.

conclusion

By avoiding these common mistakes, newbies can become more proficient at solving LeetCode problems and improve their problem-solving skills in general. It's also important to practice regularly and seek feedback from others to continue learning and growing.