https://leetcode.com/problems/word-search-ii/ I am preparing for my interviews and I am trying out this problem. My approach is based on backtracking and I use Tries to check if a prefix of the current string in the recursion exists in the trie. If a prefix does not exist, then ret...
Codewars offers unique coding challenges designed to improve your problem-solving skills. Other platforms cater to more experienced coders by offering more complex challenges. These include HackerRank and LeetCode, both of which categorize projects by difficulty level and topic. This approach lets you ...
Now, whenever you are able to find a recursion solution then please try to do it withmemoization technique. It reduces the time complexity. So basically in this, we store the calculated result in an array and if we again encounter the same problem then we return that...
Approach solving algorithm problems differently. Learn how to write efficient code that impresses your interviewer. Adopt a better preparation framework that makes the journey enjoyable and fun. Familiarize yourself with the three most crucial algorithm techniques used in problem-solving that enable you ...
I like this difficulty range because I can feel good about myself if I solve a problem by myself because they are usually somewhat hard, and if I am unable to solve them, they aren't super hard to the point of me having trouble with figuring out the solution, I usually just missed ...
This leetcode's problem is a favorite question of coding interviews. The data structure we are going to work with is Singly LinkedList. It's super fun. Note: We are not going to use the inbuilt LinkedList class of C# because that is a doubly linked list....
https://leetcode-cn.com/problems/closest-subsequence-sum/ Title description 给你一个整数数组 nums 和一个目标值 goal 。 你需要从 nums 中选出一个子序列,使子序列元素总和最接近 goal 。也就是说,如果子序列元素和为 sum ,你需要 最小化绝对差 abs(sum - goal) 。 返回 abs(sum - goal) 可能的...
At first glance, this problem seems to very easy. We can solve it with a HashMap. However, if you think it more deeper, you will find out HashMap approach does not have scalablity and persistenc... LeetCode爬坡——第一题:Two Sum ...
3. Building a Strong Foundation Practicing Regularly Consistent practice is crucial. Platforms like LeetCode, HackerRank, and CodeSignal offer a plethora of problems to work on. Start with easy problems and gradually move to medium and hard ones. The goal is to build a problem-solving mindset an...
With the interview season coming up, I did what every software engineer does to prepare for interviews - Leetcode. I enjoyed solving the questions there. I took my sweet time to try every approach, make sure my syntax was right, dry-run the algorithms with as many test cases I could, ...