That "sleeping barber" problem can be solved by "incrementing" and "decrementing" a special kind of variable this scientist developed that guarantees mutual exclusion and protects against race conditions.
This scientist is often credited with devising a problem in which a customer either stays in a waiting room or tries to wake up the namesake person if no one else is getting a haircut. That "sleeping barber" problem can be solved by "incrementing" and "decrementing" a special kind of variable this scientist developed that guarantees mutual exclusion and protects against race conditions. This creator of (*) semaphores made an algorithm which is essentially a version of the A-star algorithm in which the heuristic function is set to zero; that algorithm named for this scientist only works if the edge weights of its input graph are non-negative. The shortest path from a single point to all possible endpoints is given by, for 10 points, what Dutch computer scientist's namesake pathfinding algorithm?
This scientist is often credited with devising a problem in which a customer either stays in a waiting room or tries to wake up the namesake person if no one else is getting a haircut.
Edsger  Dijkstra   (DIKE-struh)  [accept  Dijkstra 's algorithm]