Common mistakes
Biggest Mistakes Students Make
Step 12 of 14
×What slows students down
Most DP pain does not come from intelligence gaps. It comes from a few repeatable habits that hide the state, blur the transition, and make recall weaker than it should be.
Memorizing code before state
Always define what dp means before writing loops or recursion.
Jumping to bottom-up too early
Memoization is often the fastest way to understand the recurrence first.
Practicing random problems
Pattern clusters create much more interview signal than scattered practice.
Not revisiting solved problems
Redo the same problem after a few days. That is where real recall gets built.