Road to solving every LeetCode problem - Week 9

Hello! Reporting live from the SLC airport. It is so peaceful here. 9 weeks ago I challenged myself to finally finish all ~4000 LeetCode problems 🙃 I solved 21 questions this week: -1 easy -13 medium -7 hard My favorite was "2612. Minimum Reverse Operations" where I used BFS + two sorted containers to get an `O(n log n)` solution. Week 0: 2895/3832 - 937 remain [Reddit](https://www.reddit.com/r/leetcode/comments/1qw5smq/im_going_to_solve_every_leetcode_problem_this_year/) · [LinkedIn](https://www.linkedin.com/posts/ishaan-agrawal_im-solving-every-leetcode-problem-in-2026-activity-7424959637658972160-JxuG/?utm_source=share&utm_medium=member_desktop&rcm=ACoAABUEpWMBUqAVP0lcb_o6a1TaE6Ggy4tqpis) Week 1: 2958/3837 - 879 remain (solved 63) [Reddit](https://www.reddit.com/r/leetcode/comments/1r31nm6/road_to_solving_every_leetcode_problem_week_1/) · [LinkedIn](https://www.linkedin.com/posts/ishaan-agrawal_im-solving-every-leetcode-problem-in-2026-activity-7427783853785927680-p0Ac/?utm_source=share&utm_medium=member_desktop&rcm=ACoAABUEpWMBUqAVP0lcb_o6a1TaE6Ggy4tqpis) Week 2: 2992/3846 - 854 remain (solved 34) [Reddit](https://www.reddit.com/r/leetcode/comments/1r95vkp/road_to_solving_every_leetcode_problem_week_3/) · [LinkedIn](https://www.linkedin.com/posts/ishaan-agrawal_im-solving-every-leetcode-problem-in-2026-activity-7430304749616361472-xjBp/?utm_source=share&utm_medium=member_desktop&rcm=ACoAABUEpWMBUqAVP0lcb_o6a1TaE6Ggy4tqpis) Week 3: 3020/3851 - 831 remain (solved 28) [Reddit](https://www.reddit.com/r/leetcode/comments/1rfmxws/im_solving_every_leetcode_problem_week_3_progress/) · [LinkedIn](https://www.linkedin.com/posts/ishaan-agrawal_i-solved-3020-leetcode-problems-week-3-progress-activity-7432896023825600515-b4kj/?utm_source=share&utm_medium=member_desktop&rcm=ACoAABUEpWMBUqAVP0lcb_o6a1TaE6Ggy4tqpis) Week 4: 3049/3860 - 811 remain (solved 29) [Reddit](https://www.reddit.com/r/leetcode/comments/1rmqfeo/im_solving_every_leetcode_problem_week_4_progress/) · [LinkedIn](https://www.linkedin.com/feed/update/urn:li:activity:7435793755737300992/) Week 5: 3068/3865 - 797 remain (solved 19) [LinkedIn](https://www.linkedin.com/feed/update/urn:li:activity:7438289441711919104/) Week 6: 3099/3874 - 775 remain (solved 31) [LinkedIn](https://www.linkedin.com/feed/update/urn:li:activity:7440836943799767040/) Week 7: 3120/3879 - 759 remain (solved 21) [Reddit](https://www.reddit.com/r/leetcode/comments/1s4iqbe/road_to_solving_every_leetcode_problem_3120/) · [LinkedIn](https://www.linkedin.com/feed/update/urn:li:activity:7443028642181529600/) Week 8: 3153/3888 - 735 remain (solved 33) [Reddit](https://www.reddit.com/r/leetcode/comments/1sar8ql/road_to_solving_every_leetcode_problem_3153/) · [LinkedIn](https://www.linkedin.com/feed/update/urn:li:activity:7445545704191774720/) Week 9: 3174/3993 - 719 remain (solved 21) [LinkedIn](https://www.linkedin.com/posts/ishaan-agrawal_i-have-solved-3174-leetcode-problems-week-share-7448086041242185728-IS9n?utm_source=share&utm_medium=member_desktop&rcm=ACoAABUEpWMBUqAVP0lcb_o6a1TaE6Ggy4tqpis) Profile: [https://leetcode.com/u/leetgoat_dot_io/](https://leetcode.com/u/leetgoat_dot_io/) LET'S GET THIS!!!