Answer / susie

Answer :

111

222

333

344

Explanation:

Let us consider the array and the two pointers with some address

a

0
1
2
3
4
100 102 104 106 108

p

100
102
104
106
108
1000 1002 1004 1006 1008

ptr

1000
2000

After execution of the instruction ptr++ value in ptr
becomes 1002, if scaling factor for integer is 2 bytes. Now
ptr – p is value in ptr – starting location of array p,
(1002 – 1000) / (scaling factor) = 1, *ptr – a = value at
address pointed by ptr – starting value of array a, 1002 has
a value 102 so the value is (102 – 100)/(scaling factor) =
1, **ptr is the value stored in the location pointed by
the pointer of ptr = value pointed by value pointed by 1002
= value pointed by 102 = 1. Hence the output of the firs
printf is 1, 1, 1.

After execution of *ptr++ increments value of the value in
ptr by scaling factor, so it becomes1004. Hence, the outputs
for the second printf are ptr – p = 2, *ptr – a = 2, **ptr = 2.

After execution of *++ptr increments value of the value in
ptr by scaling factor, so it becomes1004. Hence, the outputs
for the third printf are ptr – p = 3, *ptr – a = 3, **ptr = 3.

After execution of ++*ptr value in ptr remains the same, the
value pointed by the value is incremented by the scaling
factor. So the value in array p at location 1006 changes
from 106 10 108,. Hence, the outputs for the fourth printf
are ptr – p = 1006 – 1000 = 3, *ptr – a = 108 – 100 = 4,
**ptr = 4.

Answer / rashmi

the logic given by u is wierd.......!!!!!!!!!!!!!!!!!!!

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