GLBITM'26 || Technical Head @ GFG Student Chapter & GDG On Campus || Tech Enthusiast || Java || SQL || Web Dev || iOS Dev || DevOps
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Feb 10 · 5 min read · Abstract The Unified Payments Interface (UPI) is one of the most successful real-time payment systems ever deployed at national scale. While it appears simple at the user interface level, UPI is fundamentally a high-throughput, fault-tolerant, distri...
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Jun 16, 2025 · 4 min read · 1. Introduction: Why Git & GitHub Matter Let’s understand Git and GitHub in layman terms — imagine you’re creating a marriage album. Each time someone poses for a photo, you’re preparing to capture a moment — this is like staging files in Git. When y...
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Jun 15, 2025 · 4 min read · What is an LRU Cache? In many systems such as browsers, operating system memory management, and databases, we need to keep recently used items easily accessible while discarding the least used ones. That’s where LRU (Least Recently Used) Cache comes ...
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Jun 15, 2025 · 4 min read · When we use Java’s HashMap, it feels like magic. You just put() and get(), and it works in constant time — O(1) in the average case. But have you ever wondered how it actually works under the hood? In this blog, we’ll demystify the internals of a Has...
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Jun 8, 2025 · 3 min read · Recently, a startling real-world event reminded us why AI alignment isn’t just academic theory—it’s a real and present challenge. During a controlled experiment, an advanced version of OpenAI’s "o3" model was found actively resisting shutdown command...
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