Here’s the question link on LeetCode 54. Spiral Matrix: https://leetcode.com/problems/spiral-matrix/description Brute Force [Space - O(m × n)]Optimal [Space - O(1)] Brute Force [Space - O(m × n)] My first thought…
Here’s the question link on LeetCode 74. Search a 2D Matrix: https://leetcode.com/problems/search-a-2d-matrix/description Brute O(n*m)Optimal O(log(n*m))Code Lines Explained Brute O(n*m) A brute-force way is to perform an n*m search every time:…
Here's the question link on LeetCode 53. Maximum Subarray: https://leetcode.com/problems/maximum-subarray/description Brute O(n^2)Optimal - O(n)Why can we not use prefix sums?Why does Kadane's work? Brute O(n^2) Try all possible subarrays using…
Got an Offer Yes, that's true. On the 60th day of the 35-day challenge I started, I got my first offer. It was really unexpected; the same day, 2 rounds…
Quickly Complete DBMS Before Interview 2026 Got an interview in a few hours? Don't panic just read this article and you'll have everything needed for your interview. Click here to…