Leetcode Keeper

Go to https://leetcode.com/problemset or a specific problem page, such as https://leetcode.com/problems/two-sum/. The system interface will appear automatically. Please refer to the video for instructions on how to use it. Warning: All data is stored locally. Uninstalling the extension or deleting Chrome-related storage files will result in data loss. Important: 1. Each time you complete a problem, remember to click "Solved" or "Can't Solve." Otherwise, the system will not record your problem-solving activity. 2. Reviewing problems before the scheduled time will only postpone the next review date, but it will not increase the review interval.