@abhishekcrj27

Abhishek Kumar Sharma

@abhishekcrj27West Bengal, IndiaJoined May 2022

I do DSA in java and a MERN-stack developer. I am lazy so I create RESTful APIs.

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Available for mentoring, freelancing in full stack website development using mern stack(with db)and app development using RN(without db).

Abhishek Kumar Sharma's blogs

Abhishekabhishek.me41 posts

Leetcode 921. Minimum Add to Make Parentheses Valid

Link to Problem and LeetCode's Solution. Intuition We have to find number of extra brackets that would be required. if (() -> at last 1 bracket would be added => +1 if ((())A -> at we need (A) => +2 brackets if ((( -> we need 3 brackets i.e length...

Oct 10, 2024 · 3 min readabhishek.me

Leetcode @198. House Robber

You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping you from robbing each of them is that adjacent houses have security systems connected and it will auto...

Jan 21, 2024 · 2 min readabhishek.me

LeetCode @70.Climbing Stairs

Question Link and Solution You are climbing a staircase. It takes n steps to reach the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top? Solution : Intuition to this question: if 1 stair ==> 1 step...

Jan 18, 2024 · 2 min readabhishek.me

Digital Signatures

What are digital Signatures in bitcoin and crypto? Digital signatures are a means for the owner of a coin on the ledger to establish their intent to use that coin in a transaction. Digital signatures work by generating a unique hash of the message an...

May 13, 2023 · 2 min readabhishek.me

Sliding Window :

find a max sum of subarray of size k{3 here}. Example : 1) arr[] : {3,2,4,5,2,1,1,1,1,3,3} , sum = 5, k = 2: output : [4,5] = 9 class Sliding{ int findMax(int arr[], int k, int size){ int i = 0; int j = 0; int sum = 0; ...

Mar 22, 2023 · 1 min readabhishek.me

Abhishek Kumar Sharma

About

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Abhishek Kumar Sharma's blogs

Leetcode 921. Minimum Add to Make Parentheses Valid

Leetcode @198. House Robber

LeetCode @70.Climbing Stairs

Digital Signatures

Sliding Window :

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Abhishek Kumar Sharma

About

Available for

Abhishek Kumar Sharma's blogs

Leetcode 921. Minimum Add to Make Parentheses Valid

Leetcode @198. House Robber

LeetCode @70.Climbing Stairs

Digital Signatures

Sliding Window :