rayon on Instagram: "A deadlock is a fundamental problem in computer science that occurs when a set of processes become permanently stuck, unable to proceed because each is waiting for a resource held by another. Imagine four trains at a crossroads, each blocking the track the next one needs—none can move, and the system halts. Formally, deadlock arises when four conditions hold simultaneously: mutual exclusion (resources can’t be shared), hold and wait (a process holds resources while waiting f