Your comment will likely get killed so let me throw you a life-line 1. It's likely you're getting downvotes because it's an easily google-able question: https:

Your comment will likely get killed so let me throw you a life-line 1. It's likely you're getting downvotes because it's an easily google-able question: https://leetcode.com/ https://leetcode.com/ 2. " It's not anything real since today is the first time it's been mentioned here". easily proven to be untrue: https://www.google.com/search?client=firefox-b-1-d&q=site%3Aycombinator.com+%22leetcode%22 https://www.google.com/search?client=firefox-b-1-d&q=site%3A... 3. You immediately responded to the downvotes with anger and insults, ensuring that no one will bother to engage. You're probably having a bad day but don't forget other people also are having shitty days and no one is helped by your behavior. 3. You've been here for long enough to know the rules. Keep things civil and assume positive intent wherever possible. Hope your day gets better ( call a friend, hotline, play a game, draw, whatever it is that you use as a healthy form of therapy)