leetcode-solutions VS DSA-Bootcamp-Java

This is a 2D prefix sum problem (Check the problems tagged Prefix>Sum>2D in my repository).

For more problems like this, check the Permutation> Cycle section here: https://github.com/razimantv/leetcode-solutions

All my leetcode solutions are here along with tags. Find today's solutions in the latest commit.

You can't just use (index-displaced) because many positions in between might have already been removed. You need some data structure that can answer questions like "how many numbers in this range have not been removed?" and make updates like "remove this number" efficiently. I did this using a segment tree: https://github.com/razimantv/leetcode-solutions/tree/main/Solutions/M/make-array-empty

No. I used to answer a lot of programming and math questions on Quora (https://www.quora.com/profile/Raziman-T-V). I also have a GitHub repository of my LeetCode solutions (https://github.com/razimantv/leetcode-solutions)

Here is my solution: https://github.com/razimantv/leetcode-solutions/tree/main/Solutions/D/difference-between-maximum-and-minimum-price-sum

If you are interested, all my solutions (mostly C++) are here, along with tags for the algorithms/tricks I used to solve them.

Very similar to maximum profit in job scheduling. Can be done with sorting+dp with binary search: https://github.com/razimantv/leetcode-solutions/tree/main/Solutions/M/maximum-profit-in-job-scheduling

One way to solve this would be to keep a hash map of prefix sums modulo k: https://github.com/razimantv/leetcode-solutions/tree/main/Solutions/C/continuous-subarray-sum

Here is my c++ implementation of a similar problem, try to take a look.

if you want something more extensive you can check out this ongoing course which has already covered lots of topics in depth. https://github.com/kunal-kushwaha/DSA-Bootcamp-Java there is a playlist on youtube and assignments on github for practice

You can also problems from https://docs.google.com/spreadsheets/d/1-wKcV99KtO91dXdPkwmXGTdtyxAfk1mbPXQg81R9sFE/edit?usp=sharing Fraz DSA Sheet. Below contains many problem from Kunal-khushwa DSA course, both solved and unsolved https://github.com/kunal-kushwaha/DSA-Bootcamp-Java

3. DSA Bootcamp Java

Follow this very useful PDF for all the commands that you need. Git Cheat Sheet Education

Here's the GitHub Repository for detailed curriculum and resources: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java