Forget sharks, serial killers, or even death itself. The true nightmare fuel is that one competitive programming problem that's been haunting your GitHub for three years. You know, the one where you've tried 47 different approaches, scrolled through StackOverflow until your finger developed carpal tunnel, and still get "Time Limit Exceeded" on test case #217. The problem that makes you question your entire career choice at 2AM while surrounded by energy drink cans and broken dreams. Death is merciful – CP problems are forever.