Abstract: In many universities around the world, Java is popularly used for teaching basic programming to novice students. To accommodate this reality, we have developed Java Programming Learning ...

So, you’ve got a HackerRank test coming up, huh? It’s pretty common these days, with lots of companies using it to see if you can code. It can feel a bit daunting, but honestly, it’s just another ...

Getting good at LeetCode Java can feel like a puzzle sometimes, right? You see all these problems, and you’re not sure where to even start. This guide is here to break down the common approaches and ...

HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications.

Abstract: We present a simple performance bound for the greedy scheme in string optimization problems. Our approach generalizes the family of greedy curvature bounds established by Conforti and ...

1 Department of Cell Therapy and Applied Genomics, King Hussein Cancer Center, Amman, Jordan 2 Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada Suffix trees ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Donald Trump very rarely loses control of his own story. But the Jeffrey Epstein saga is beyond his powers to quell. It’s a new twist for the president, being at odds with the loudest and most ...

UK culture secretary Lisa Nandy has launched a stinging attack on the BBC, accusing the broadcaster of having a “problem of leadership” after its latest editorial debacle over the Gaza conflict. On ...

Researchers, in a recent Physical Review Letters paper, introduce a new mechanism that may finally allow ultralight dark photons to be considered serious candidates for dark matter, with promising ...