A memory page containing a heavily used variable that was initialized very early and is in constant use is removed when

Consider the following heap (Figure) in which blank regions are not in use and hatched region are in use.

The sequence of requests for blocks of size $$300, 25, 125, 50$$ can be satisfied if we use.

Consider the resource allocation graph given in the figure.
(a) Find if the system is in a deadlock state.
(b) Otherwise, find a safe sequence.

An unrestricted use of the "goto" statement is harmful because