#leetcode Development Tutorials & Tips | Roast Dev

Why I Dived into LeetCode: Unleashing My Problem-Solving Superpowers!

What lead me to Leetcode: I am Student and Whenever a beginner student in this dev field think about coding or programming they usually always think about making websites, apps, cool UI's, an...

06.09.2025 0 Read More

Merging Two Sorted Linked List in Java

Blog Post: Merging Two Sorted Linked Lists - My In-Place Solution When I first encountered the "Merge Two Sorted Lists" problem, I was excited to work with linked lists—a data structure tha...

09.03.2025 0 Read More

Leetcode - 48. Rotate Image

⛶/** * @param {number[][]} matrix * @return {void} Do not return anything, modify matrix in-place instead. */ var rotate = function (matrix) { let l = 0, r = matrix.length-1; while (l &...

10.03.2025 0 Read More

Count of Substrings Containing Every Vowel and K Consonants II

Problem Pattern: number of subarray/substring with condition like sum ==k or count = kTC: O(n) ⛶class Solution { public long countOfSubstrings(String word, int k) { return Math.abs(fin...

10.03.2025 0 Read More

3306. Count of Substrings Containing Every Vowel and K Consonants II

3306. Count of Substrings Containing Every Vowel and K Consonants IIDifficulty: MediumTopics: Hash Table, String, Sliding WindowYou are given a string word and a non-negative integer k.Return the tota...

10.03.2025 0 Read More

LeetCode Number of Substrings Containing All Three Characters: Sliding Window in Golang

Today's LeetCode daily challenge was so fun to solve: Number of Substrings Containing All Three Characters. What are we trying to do? We have a string s that's build using only 3 characters:...

11.03.2025 0 Read More

1358. Number of Substrings Containing All Three Characters

1358. Number of Substrings Containing All Three CharactersDifficulty: MediumTopics: Hash Table, String, Sliding WindowGiven a string s consisting only of characters a, b and c.Return the number of sub...

11.03.2025 0 Read More

Best Time to Buy and Sell Stock in Java

Solving the Best Time to Buy and Sell Stock Problem in Java When it comes to algorithmic problem-solving, one of the classic challenges that developers encounter is the "Best Time to Buy and ...

12.03.2025 0 Read More

Leetcode - 73. Set Matrix Zeroes

Javascript Code ⛶/** * @param {number[][]} matrix * @return {void} Do not return anything, modify matrix in-place instead. */ var setZeroes = function (matrix) { let ROWS = matrix.length, C...

12.03.2025 0 Read More

2529. Maximum Count of Positive Integer and Negative Integer

2529. Maximum Count of Positive Integer and Negative IntegerDifficulty: EasyTopics: Array, Binary Search, CountingGiven an array nums sorted in non-decreasing order, return the maximum between the num...

12.03.2025 0 Read More

Why I Dived into LeetCode: Unleashing My Problem-Solving Superpowers!

Merging Two Sorted Linked List in Java

Leetcode - 48. Rotate Image

Count of Substrings Containing Every Vowel and K Consonants II

3306. Count of Substrings Containing Every Vowel and K Consonants II

LeetCode Number of Substrings Containing All Three Characters: Sliding Window in Golang

1358. Number of Substrings Containing All Three Characters

Best Time to Buy and Sell Stock in Java

Leetcode - 73. Set Matrix Zeroes

2529. Maximum Count of Positive Integer and Negative Integer

#reading

#popular