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ISRO-2013-4

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5 votes
5 votes

The following steps in a linked list

p = getnode() 
info(p) = 10 
next (p) = list 
list = p

result in which type of operation?

  1. Pop operation in stack
  2. Removal of a node
  3. Inserting a node
  4. Modifying an existing node
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2 Answers

Best answer
13 votes
13 votes
It is Insertion of node ,

A node have 2 fields associate with it

1. Data ( The information that it conatin )

2 . Next --- ( which point to the next node )

The line P= get node () ; mean you are allocating a space for a new node that you want to create

Then you from second line info(p)=10 mean you are setting the info value to 10

And then you are updating list Field
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6 votes
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get node will create a node then P will point to that newly created node

after info(p) will insert the value 10 inside that node

node p next part(which contains address of next node ) will then point to already existing link list named 'list' here

then list will point to node p...as a head..this is inserting a node at beginning of link list so, option is (c)

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