Spaced repetition is an evidence-based learning technique that is usually performed with flashcards. Newly introduced and more difficult flashcards are shown more frequently, while older and less difficult flashcards are shown less frequently in order to exploit the psychological spacing effect. The use of spaced repetition has been proven to increase the rate of learning
Whats the benefit of spaced repetition while studying leetcode?
Spaced Repetition promotes long term memory - so the leetcode theory that you are learning now will stick with you months down the line.
Is SpacedLeets worth the money?
You probably spend more money buying drinks at a club (and not get any girls) while leetcoding + job hopping can earn you 20k+. DUH!