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Java-Competitive-Programming

9 posts

Finding Maximum Length Subsequence with Product Conditions

Last Updated: 23 July 2025

Given an array A[] of length N, find the length of the longest subsequence S such that:If we took even number of elements from S, then the product of those elements should...read more

Java-Competitive-Programming

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Find winner in the game of Binary Array

Last Updated: 23 July 2025

Given a binary array X[] of size N. Two players A and B are playing games having the following rules, then the task is to determine the winner if B starts first and both p...read more

Algorithms-Greedy Algorithms

Greedy Algorithms

Java-Competitive-Programming

Efficiently Reading Input For Competitive Programming using Java 8

Last Updated: 23 July 2025

As we all know, while solving any CP problems, the very first step is collecting input or reading input. A common mistake we all make is spending too much time on writing ...read more

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Java Competitive Programming Setup in VS Code with Fast I/O and Snippets

Last Updated: 23 July 2025

Though C++ is the dominating language in the competitive programming universe, there is a fair share of users who still continue to use Java as it has been there seen in t...read more

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Setting up Java Competitive Programming Environment

Last Updated: 23 July 2025

An operating system is required to be installed on your system. here we will be discussing the setup in windows. However, you can choose any operating system. Install JDK ...read more

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Java Generics to Code Efficiently in Competitive Programming

Last Updated: 23 July 2025

Templates are the foundation of generic programming, which involve writing code in a way that is independent of any particular type. These powerful tools can be used for w...read more

Java-Competitive-Programming

Which Java libraries are useful for competitive programming?

Last Updated: 12 July 2025

Java is one of the most recommended languages in competitive programming (please refer a previous article for more details)Java Collection framework contains lots of conta...read more

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Java-Collections

interview-preparation

Java-Competitive-Programming

Java tricks for competitive programming (for Java 8)

Last Updated: 23 July 2025

Although the practice is the only way that ensures increased performance in programming contests but having some tricks up your sleeve ensures an upper edge and fast debug...read more

Java-Competitive-Programming

Fast I/O in Java in Competitive Programming

Last Updated: 06 November 2025

In competitive programming, fast input and output (I/O) operations are essential to prevent Time Limit Exceeded (TLE) errors. Since Java’s standard I/O methods are relativ...read more

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