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790. Domino and Tromino Tiling

790. Domino and Tromino TilingDifficulty: MediumTopics: Dynamic ProgrammingYou have two types of tiles: a 2 x 1 domino shape and a tromino shape. You may rotate these shapes. Given an integer n, retur...

05.05.2025 0 Read More

Solving the Valid Palindrome Problem in Java

Hey there! If you’re prepping for coding interviews or just love a good string problem, you’ve probably come across the Valid Palindrome challenge. It’s a classic that tests your ability to mani...

13.03.2025 0 Read More

3356. Zero Array Transformation II

3356. Zero Array Transformation IIDifficulty: MediumTopics: Array, Binary Search, Prefix SumYou are given an integer array nums of length n and a 2D array queries where queries[i] = [li, ri, vali].Eac...

13.03.2025 0 Read More

2226. Maximum Candies Allocated to K Children

2226. Maximum Candies Allocated to K ChildrenDifficulty: MediumTopics: Array, Binary SearchYou are given a 0-indexed integer array candies. Each element in the array denotes a pile of candies of size ...

14.03.2025 0 Read More

Invert Binary Tree in Java

Invert Binary Tree - A Step-by-Step Journey Binary trees are a fascinating data structure, and problems involving them often show up in coding interviews. Today, I’ll walk you through my so...

14.03.2025 0 Read More

Desafio do LeetCode: Validação de Sequência de Parênteses

Introdução Neste artigo, vou apresentar a implementação de um desafio simples de validação de caracteres de texto em Java. Se você não me conhece, meu nome é Henrique Otogami e seja ...

15.03.2025 0 Read More

2560. House Robber IV

2560. House Robber IVDifficulty: MediumTopics: Array, Binary SearchThere are several consecutive houses along a street, each of which has some money inside. There is also a robber, who wants to steal ...

15.03.2025 0 Read More

2594. Minimum Time to Repair Cars

2594. Minimum Time to Repair CarsDifficulty: MediumTopics: Array, Binary SearchYou are given an integer array ranks representing the ranks of some mechanics. ranksi is the rank of the ith mechanic. A ...

16.03.2025 0 Read More

Leetcode's runtime "beats x%" is x% reliable

Introduction It's been a while I have been solving Leetcode problems. I always notice that Leetcode says my code sucks by showing me the image given below. Digging deep into the matte...

17.03.2025 0 Read More

Leetcode - 289. Game of Life

Cell State Mapping: Original State New State Transitional Value Meaning 1 (Alive) 0 (Dead) 2 Cell was alive but will die. 0 (Dead) 1 (Alive) 3 Cell was dead but will become alive...