Ben Pereira

Jul 14 '25

LeetCode — 1791. Find Center of Star Graph

#leetcode #java #arrays #graphs

LeetCode — 3264. Final Array State After K Multiplication Operations I

2 min read

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Jul 7 '25

LeetCode — 3264. Final Array State After K Multiplication Operations I

#leetcode #java #array #numbers

LeetCode — 2373. Largest Local Values in a Matrix

2 min read

Jun 6 '25

LeetCode — 2373. Largest Local Values in a Matrix

#leetcode #java #matrix #numbers

LeetCode — 2824. Count Pairs Whose Sum is Less than Target

2 min read

May 30 '25

LeetCode — 2824. Count Pairs Whose Sum is Less than Target

#java #leetcode #numbers #pairs

LeetCode — 2798. Number of Employees Who Met the Target

1 min read

May 29 '25

LeetCode — 2798. Number of Employees Who Met the Target

#java #interview #leetcode #iteration

LeetCode — 3467. Transform Array by Parity

1 min read

May 28 '25

LeetCode — 3467. Transform Array by Parity

#java #array #leetcode #numbers

LeetCode — 2161. Partition Array According to Given Pivot

2 min read

May 26 '25

LeetCode — 2161. Partition Array According to Given Pivot

#leetcode #java #arrays #twopointers

3 min read

Singleton

LeetCode — 2807. Insert Greatest Common Divisors in Linked List

Apr 13 '25

Singleton

#java #singleton #programming

2 comments

3 min read

Feb 24 '25

LeetCode — 2807. Insert Greatest Common Divisors in Linked List

#java #leetcode #greatestcommondivisor #listnode

Leetcode — 1486. XOR Operation in an Array

3 min read

Leetcode — 3146. Permutation Difference between Two Strings

Jan 31 '25

Leetcode — 1486. XOR Operation in an Array

#java #leetcode #xor #exclusive

1 comment

2 min read

Jan 17 '25

Leetcode — 3146. Permutation Difference between Two Strings

#java #leetcode #string #permutations

Leetcode — 2942. Find Words Containing Character

3 min read

Jan 7 '25

Leetcode — 2942. Find Words Containing Character

#java #leetcode #arrays #string

Leetcode — 3280. Convert Date to Binary

2 min read

Jan 5 '25

Leetcode — 3280. Convert Date to Binary

Leetcode — 3289. The Two Sneaky Numbers of Digitville

2 min read

Jan 2 '25

Leetcode — 3289. The Two Sneaky Numbers of Digitville

#leetcode #arrays #java #numbers

Leetcode — 3190. Find Minimum Operations to Make All Elements Divisible by Three

2 min read

Dec 19 '24

Leetcode — 3190. Find Minimum Operations to Make All Elements Divisible by Three

#leetcode #java #numbers #array

2 reactions

Leetcode — 2769. Find the Maximum Achievable Number

1 min read

Dec 5 '24

Leetcode — 2769. Find the Maximum Achievable Number

#leetcode #java #numbers

Leetcode — Top Interview 150–125. Valid Palindrome

1 min read

Nov 13 '24

Leetcode — Top Interview 150–125. Valid Palindrome

#java #leetcode #interview #palindrome

Leetcode — Top Interview 150–121. Best Time to Buy and Sell Stock

2 min read

Nov 12 '24

Leetcode — Top Interview 150–121. Best Time to Buy and Sell Stock

#java #leetcode #array #interview

2 min read

Introduction to jOOQ

Nov 4 '24

Introduction to jOOQ

#java #jooq #intro #introduction

Leetcode — Top Interview 150–169. Majority Element

2 min read

Nov 3 '24

Leetcode — Top Interview 150–169. Majority Element

#java #arrays #leetcode #interview

Leetcode — Top Interview 150 — Remove Element

1 comment

1 min read

Nov 2 '24

Leetcode — Top Interview 150 — Remove Element

#java #leetcode #interview #array

Leetcode — 3110. Score of a String

2 min read

Nov 2 '24

Leetcode — 3110. Score of a String

#java #leetcode #interview #strings

Leet Code 75–746. Min Cost Climbing Stairs

2 min read

Oct 21 '23

Leet Code 75–746. Min Cost Climbing Stairs

#java #interviewquestions #leetcode #dynamicprogramming

SQL 50–1068. Product Sales Analysis I

2 min read

Oct 2 '23

SQL 50–1068. Product Sales Analysis I

SQL 50–1378. Replace Employee ID With The Unique Identifier

2 min read

Sep 25 '23

SQL 50–1378. Replace Employee ID With The Unique Identifier

2 min read

SQL 50–1683. Invalid Tweets

Sep 22 '23

SQL 50–1683. Invalid Tweets

#mysql #sql #interviewquestions #leetcode

2 min read

SQL 50–1148. Article Views I

Sep 21 '23

SQL 50–1148. Article Views I

2 min read

SQL 50–595. Big Countries

Sep 19 '23

SQL 50–595. Big Countries

#leetcode #interviewquestions #sql #mysql

2 min read

SQL 50–584. Find Customer Referee

Sep 19 '23

SQL 50–584. Find Customer Referee

Leet Code 75–933. Number of Recent Calls

2 min read

Sep 16 '23

Leet Code 75–933. Number of Recent Calls

#java #interviewquestions #leetcode #queue

Leet Code 75–2215. Find the Difference of Two Arrays

2 min read

Sep 14 '23

Leet Code 75–2215. Find the Difference of Two Arrays

#java #leetcode #interviewquestions #beginners

Leet Code 75–1732. Find the Highest Altitude

4 min read

Sep 13 '23

Leet Code 75–1732. Find the Highest Altitude

#leetcode #interviewquestions #java

2 min read

Leet Code 75–283. Move Zeroes

Sep 12 '23

Leet Code 75–283. Move Zeroes

#java #interviewquestions #twopointers #leetcode

What’s the difference between a library and a framework?

2 min read

SQL 50 – 1757. Recyclable and Low Fat Products

Sep 11 '23

What’s the difference between a library and a framework?

#java #interviewquestions #framework #libraries

1 comment

3 min read

Sep 7 '23

SQL 50 – 1757. Recyclable and Low Fat Products

#leetcode #sql #interviewquestions #javascript

Leet Code — 2723. Add Two Promises

2 min read

Sep 6 '23

Leet Code — 2723. Add Two Promises

#javascript #leetcode #interviewquestions #promises

Leet Code — 1967. Number of Strings That Appear as Substrings in Word

3 min read

Sep 5 '23

Leet Code — 1967. Number of Strings That Appear as Substrings in Word

#interviewquestions #leetcode #java #string

Leet Code 75–1768. Merge Strings Alternately

2 min read

Sep 2 '23

Leet Code 75–1768. Merge Strings Alternately

Leet Code — 2744. Find Maximum Number of String Pairs

3 min read

Sep 1 '23

Leet Code — 2744. Find Maximum Number of String Pairs

2 reactions

3 comments

3 min read

Leet Code — 709. To Lower Case

Aug 31 '23

Leet Code — 709. To Lower Case

Leet Code — Minimum Number of Operations to Move All Balls to Each Box

3 min read

Aug 30 '23

Leet Code — Minimum Number of Operations to Move All Balls to Each Box

4 min read

Leet Code — 2315. Count Asterisks

Aug 29 '23

Leet Code — 2315. Count Asterisks

2 reactions

Object Oriented Concept - Inheritance

2 min read

Aug 28 '23

Object Oriented Concept - Inheritance

#oop #objectoriented #inheritance #concept

Leet Code — 1684. Count the Number of Consistent Strings

3 min read

Aug 28 '23

Leet Code — 1684. Count the Number of Consistent Strings

Computer Language - What's the difference between compiled and interpreted language?

2 min read

Aug 26 '23

Computer Language - What's the difference between compiled and interpreted language?

#computerscience #interpretedlanguage #compiledlanguage

Leet Code — 2828. Check if a String Is an Acronym of Words

3 min read

Aug 25 '23

Leet Code — 2828. Check if a String Is an Acronym of Words

Leet Code — 1662. Check If Two String Arrays are Equivalent

3 min read

Aug 24 '23

Leet Code — 1662. Check If Two String Arrays are Equivalent

#leetcode #java #interviewquestions #string

Leet Code — 1816. Truncate Sentence

3 min read

Aug 23 '23

Leet Code — 1816. Truncate Sentence

#java #leetcode #interviewquestions #string

Leet Code — 2194. Cells in a Range on an Excel Sheet

3 min read

Aug 23 '23

Leet Code — 2194. Cells in a Range on an Excel Sheet

#java #leetcode #interviewquestions #string

Leet Code — 1773. Count Items Matching a Rule

3 min read

Aug 21 '23

Leet Code — 1773. Count Items Matching a Rule

#leetcode #java #interviewquestions #string

Leet code — 1221. Split a String in Balanced Strings

3 min read

Aug 20 '23

Leet code — 1221. Split a String in Balanced Strings

1 min read

Curly’s Law

Aug 19 '23

Curly’s Law

#java #bestpractices #programming #development

Leet code — 1221. Split a String in Balanced Strings

3 comments

1 min read

Aug 18 '23

Leet code — 1221. Split a String in Balanced Strings

Difference between Interface and Abstract Class

2 min read

Aug 18 '23

Difference between Interface and Abstract Class

#java #interface #abstractclass #interview