Learning algorithms not helping you ace interviews? Discover the hidden framework behind all LeetCode questions that unlocks the secrets to solving problems methodically and efficiently.As an aspiring software engineer prepping for technical interviews, I often hear the same advice: “Practice on LeetCode!” LeetCode has become the go-to platform for solving coding challenges to build core programming and algorithm skills. Here’s how I’ve been able to start successfully tackling LeetCode as a beginner:

Pick One Language LeetCode supports many languages, but it’s best to stick with just one. This allows you to standardize your process instead of switching syntaxes. As a Python developer, I opted to solve all challenges in Python for consistency.Review the Topic Tags LeetCode organizes challenges by topic like arrays, strings, dynamic programming etc. Identify your weaker areas and focus practice there. For me, it was essential algorithms like sorting/searching.

Start with Easier Difficulty Problems Don’t dive right into the hard challenges! Build confidence by solving some straightforward problems first. Level “Easy” is a good starting point to get used to thinking algorithmically.Break Down the Problem Read the problem description, inputs, outputs carefully. Then break it down step-by-step. What are the base cases? Any gotchas? Don’t start coding right away.

Write Down Your Approach Write out the crux of your solution before coding. This could just be some notes and pseudocode. Verbalize your thought process. Imagine explaining it to someone else.Code with Intent Once clear on the approach, start writing actual code. Name variables intuitively, use indentation and spacing liberally, include comments explaining the logic.

Test Thoroughly Devise sample inputs to test your code. Consider edge cases. Does it work correctly on all inputs? Are there opportunities to optimize efficiency?Review Solutions After submitting your own solution, review solutions others have submitted. Compare approaches and see what you can learn. Don’t get discouraged if others used more optimal algorithms.

Grind and Repeat Rinse and repeat consistently. LeetCode takes patience and practice. Over time, you’ll gradually accumulate knowledge and techniques for solving coding challenges efficiently.

LeetCode has been invaluable for strengthening my core programming abilities. I encourage all aspiring engineers to incorporate it into their interview prep!Master the art of the algorithm interview. Learn how to turn recursive backtracking, dynamic programming, and other CS fundamentals from textbook concepts into solved LeetCode challenges.

Sliding Window

Two Pointers

Fast and Slow pointer

Binary Search

Recursion

Backtracking

Dynamic Programming

Greedy Approach

Bit Manipulation

Prefix/Suffix Sum

There are more patterns like topological sort, union-find, monotonic stacks etc. but these form a solid foundation for developing strong problem solving skills to tackle most LeetCode questions. Recognizing related patterns helps solve problems systematically.