Nitish Kumar

GSoC'26 @oppiaorg | Just getting started...

[Nitish Kumar @nitis9999]

DAY 11 of #SDESheetChallenge

Q1 had Interesting optimal approach.
-Find the intersection point of Y LL: used hashset, need to remember the optimal approach.
-Detect a loop in LL: fast and slow pointers used.
-Reverse LL in group of given size K: constructive algo type.

[Nitish Kumar @nitis9999]

DAY 10 of #SDESheetChallengeSecond
Mostly constructive algo questions
-Remove Nth node from the back of the LL:Edge case got me,still solved
-Add two numbers as LinkedList: Very easy.
-Delete Node in a Linked List: Initially did with swap then later thought about O(1)approach.

[Nitish Kumar @nitis9999]

DAY 9 of #SDESheetChallenge
Second question was interesting, Need to remember these pattern.

- Reverse a LL: Easy peasy
- Find Middle of Linked List: Learnt to use slow and fast pointers
- Merge two Sorted Lists: Easy implementation.

[Nitish Kumar @nitis9999]

DAY 8 of #SDESheetChallenge
Good Problems need, to practice these again:
- Largest Subarray with K sum: Had figured out the optimal approach for positives
- Count subarrays with given xor K: Prefix xor used
- Longest Substring Without Repeating Characters: constructive algo.

[Nitish Kumar @nitis9999]

DAY 7 of #SDESheetChallenge-
- Two Sum: Easy peasy (used map, o(n)
- 4 Sum: standard(o(n3) approach)
- Longest Consecutive Sequence in an Array: Easy peasy(applied o(nlog(n)) and o(n) approaches)

[Nitish Kumar @nitis9999]

DAY 6 of #SDESheetChallenge
- Majority Element-II: Easy peasy (used modified moore voting algo)
- Grid unique paths: solved using recursion and memoization method approch
- Reverse Pairs: Again I had intution of merge sort, but was not able to implement it.

[Nitish Kumar @nitis9999]

@thevasishth What Is that push and git icon, is it extension ??

[Nitish Kumar @nitis9999]

DAY 5 of #SDESheetChallenge
- Search a 2d matrix: Easy peasy (used binarysearch twice for getting row and one for column)
- pow(x, n): used stl, then o(n) aproach, o(logn) was in my mind but was unable to implement it.
- Majority Element 1: applied Moore Voting Algorithm

[Nitish Kumar @nitis9999]

DAY 4 of #SDESheetChallenge
- Find duplicate number's optimized approach blowed my mind. The mathematics behind it 🤯... (https://t.co/ZjozP54hHh)
- Find Missing and Repeated Values: Easy Peasy !
- count the number of inversions: Still feels hard.

[Nitish Kumar @nitis9999]

Completed Day 3 – #SDESheetChallenge
Rotate matrix by 90 degree was the challenging question of this set.

[Nitish Kumar @nitis9999]

Last week was one of my most Productive week, I have shared all my learning from my GSoC Project over here: GSoC Journal: Week 4 - A Week of Building, Reviews, and Unexpected Deep Dives https://t.co/KiCGumgWrd

[Nitish Kumar @nitis9999]

Completed Arrays-1 from SDE sheet, will try to manage it with ongoing GSoC project.

Next permutation was hard for me, but once I got the observation It was just a easy question.
#SDESheetChallenge

[Nitish Kumar @nitis9999]

Here's Week-2 Journal: https://t.co/TVemO6LJsn

[Nitish Kumar @nitis9999]

Updated my Github readme: https://t.co/XjDWIshf9N, after a long time.

Next Resume update.

[Nitish Kumar @nitis9999]

Here's my GSoC Journal: Week 1- The Beginning after the End : https://t.co/GfjmL1Taf7

[Nitish Kumar @nitis9999]

Drafted my first blog!, will share the link soon.

It is related to the first week of CBP of GSoC.

[Nitish Kumar @nitis9999]

@preetwt @ChaiCodeHQ @Hiteshdotcom @piyushgarg_dev @nirudhuuu @yntpdotme @surajtwt_ Congratulations 🎊

[Nitish Kumar @nitis9999]

@Abhishek_Ji_10 Congratulations @Abhishek_Ji_10 🎊

[Nitish Kumar @nitis9999]

@Mosinshaikh7437 @oppiaorg Yep , the proposal has a Predefined format and it contains everything from contributors introduction to all the code implementation that would be done in project. Even 3rd party failure has also been considered in it.

[Nitish Kumar @nitis9999]

Just in case if anyone is interested in Proposal, here's what I submitted: https://t.co/VpyMu6WrBo

PS: ignore the anime pics.