LeetCode Java Practice

This repository contains my practice for Data Structures and Algorithms using Java.

The goal is to solve LeetCode problems in a structured and repeatable environment instead of solving them only on the website.

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Using This Repository

If you want to use this setup for practicing LeetCode locally:

git clone https://github.com/tsapkota07/Leetcode-java.git
cd Leetcode-java
source scripts/aliases.sh

You can then run problems from the terminal:

lc 1
lc 1 open
lc 1 list

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Repository Structure

Problems are grouped in folders of 100 problems each.

problems/
  p0001_0100/
    p0001_two_sum/
      Solution.java
      Runner.java

  p0101_0200/
    p0128_longest_consecutive_sequence/

Each problem has its own folder containing:

• Solution.java — solution written in the same format expected by LeetCode
• Runner.java — used for running and debugging the solution locally

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Running Problems

Before starting a session:

source scripts/aliases.sh

Commands:

lc 123

Run the runner for problem 123

lc 123 open

Open the folder for problem 123

lc 123 list

Show folders that match problem 123

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Study Workflow

When solving a problem:

1. Review concepts from the notes
2. Attempt the problem without hints
3. Analyze the solution and write notes about the pattern

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Notes

• Notes.md contains general notes and patterns.
• phase.txt contains the roadmap for the topics and problems I plan to study.

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Goal

Build strong understanding of algorithms and data structures through consistent practice.