Getting a solution accepted on LeetCode is a genuine accomplishment. You took a problem, broke it down, and made the computer do what you wanted. That is the core of programming. But then you look at the top-voted solution and it is shorter, faster, and uses some clever trick you would never have thought of. It is natural to feel deflated — but that feeling is a trap.
Why the best solutions feel impossible
The solutions you see on LeetCode discussions are not written by average learners. They are written by people who have seen the same pattern ten times before. What looks like genius is usually just pattern recognition developed over many repetitions. A senior engineer did not write that clean solution on their first try either.
A better way to read other solutions
Instead of trying to understand the entire solution at once, read it piece by piece. Run it through your head line by line. Print out intermediate values. Then close the tab and try to rewrite it from memory. If you get stuck, peek. Repeat until you can explain why every single character is there.
Three things to do after you solve a problem
First, be proud that you solved it. Second, read exactly one alternative solution — not all of them. The most efficient one is often the hardest to learn from. Pick one that uses a technique you have not seen before. Third, add that technique to a personal notes file. Writing it down in your own words is what moves it from “I saw this once” to “I understand this.”
The real measure of progress
Progress is not measured by how your solution compares to strangers on the internet. It is measured by whether the problem you struggled with last month looks easy to you now. That is the only comparison that matters.
