Author: Innovate Journey

Sudoku is a logic-based combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids (also called “boxes”, “regions”, or “blocks”) contain all of the …

Sudoku problem |Leet Code Read more »

This is a classic algorithmic problem that can be solved using various approaches, such as greedy algorithms or dynamic programming. Here’s a brief overview of the problem and a common solution strategy Problem Statement: Given an array of integers representing …

The “Candy” problem on LeetCode Read more »

solution :- Firstly install node js, npm and VS Code in your system Step 1:- Open command prompt and for create project write npx create-next-app Step 2:- Now it will say to write your Project name. Step 3 :- Now …

How to create React project using command prompt? Read more »

Plan A Preparing for interviews at top tech companies like Facebook, Amazon, Netflix, and Google (FANG) requires a well-structured and comprehensive plan. Here’s a 90-day preparation agenda focusing on Data Structures and Algorithms: Days 1-30: Foundations and Basics Days 31-60: …

Mastering the Coding Interview: A 90-Day Roadmap to Conquer Data Structures and Algorithms for FANG Companies Read more »

Ans :- these are the difference  between String Buffer and String Builder s.No String Buffer String Builder 1. StringBuffer is Synchronized StringBuilder is non Synchronized 2. StringBuffer  is thread safe StringBuilder is not thread safe 3 StringBuffer is less efficient …

What is the difference between StringBuffer and Stringbuilder ? Read more »

Solution :- SELECT e.empId,e.empName,e.cityId,c.cityName,c.stateName FROM Employee eJOIN City c ON e.cityId = c.cityIdWHERE e.empId =100;