"example_text": "Input: nums = [2,7,11,15], target = 9\nOutput: [0,1]\nExplanation: Because nums[0] + nums[1] == 9, we return [0, 1].", "A really brute force way ...

Then I looked at the LeetCode hint, and everything clicked. 💡 Store: Last digit Second last digit Once I had those two values available, every time I placed a new digit, I could immediately determine ...

There was an error while loading. Please reload this page.

Solution SELECT DISTINCT l1.num AS ConsecutiveNums FROM Logs l1 JOIN Logs l2 ON l1.id = l2.id - 1 JOIN Logs l3 ON l2.id = l3.id - 1 WHERE l1.num = l2.num AND l2.num = l3.num; Key Concepts ->Self Joins ...