Tips that actually move the needle.
Preparation habits pulled from candidates who went through the process more than once, not generic advice.
Study the pattern, not the problem
Two Sum and Subarray Sum look different until you notice they're both solved with the same hash map trick. Learn the pattern once, recognize it everywhere.
Say your answer out loud
Silent practice hides the moments where your reasoning has a gap. Reading aloud finds them before the interview does.
Time-box every rep
Twenty-five minutes per question, no exceptions. Interviewers won't give you the extra ten either.
Revisit what you got wrong
A missed question you review twice sticks. One you skip past tends to show up again in a different interview.
Read both answers, not just one
The expert answer shows what to say. The plain-English explanation is what actually makes it stick when you're nervous and blanking mid-interview.
Match your prep to the company
An IT-services interview and a big-tech interview test different things. Filter by company before you spend hours on the wrong kind of question.