Memory plays an important role in executing a program because it is where the program's data

is stored and manipulated.

a$)$ Define the term and heap

memory.

$[2$ Marks$]$

b$)$ With the aid of a diagram, illustrate the overall structure of Run$-$Time

Memory.

c$)$ Based on a heap and stack of a memory provided in Figure $1,$ determine the value of

each of the following expressions:$-$

i$)(y)$

ii$),(y)$

iii$),((A[3]))$

iv$),(i(y))$

d$)$ Figure $2$ is the programming code in Java.f

int value;

node next;

$\}$

node a$,$ b; node$()$;

b $=$ a;Figure $2$

With the aid of a diagram, show the situations below:

i$)$ "Variable a and b has a node"

ii$)$ "Variable b becomes orphan"

iii$)$ "Show there is a memory leak"help