@sandeepIITP
Education
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Sep 7, 2025 · 8 min read · Imagine you’re a student who just built a killer app with AI tools. It’s live, it works, and you’re calling yourself a “tech wizard” online. But then someone asks, “Yo, how does this app actually work?” or “What if it crashes?” Suddenly, you’re stuck...
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Sep 6, 2025 · 6 min read · Imagine you’re on YouTube, clicking a channel’s profile, and instantly seeing their subscriber count, who they’re subscribed to, and whether you’re subscribed. It feels seamless, right? But behind the scenes, there’s some serious database magic at wo...
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Sep 5, 2025 · 5 min read · Picture this: you’re scrolling through YouTube, hit “Subscribe” on your favorite channel, and instantly see their subscriber count tick up. Or maybe you’re on Instagram, checking how many followers your friend has. Ever wonder how these platforms mak...
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Sep 3, 2025 · 5 min read · Imagine you’re at a movie theater. You buy a ticket to watch a film—that’s your access token, a short-term pass that gets you into the theater for a specific show. But what if you want to stay for a double feature without buying a new ticket each tim...
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