Sample test paper conducted on 5th JULY 2007 AT DELHI UNIVERSITY
NAGARRO PAPER ON 5th JULY AT DELHI UNIVERSITY
The written exam consisted of 25
general maths questions on trigonometry, circles, area, perimeter, mensuration,
time, work, distance etc ques.
and aptitude consisted of 4 ques with several parts. they wer twisty ques
including the puzzle test ques given in R.S.Aggarwal verbal-nonverbal book....
The second written exam included 4
coding ques which wer to be written in C++. It was something like this:
Instructions:
1.The code should emphasize on min time and then min memory requirements.
2.The time limit was 1hr 30min.
Ques1: Given an array containing k nos in the range 1..n and another scratch array of size n. Write an program to remove the duplicates from the array.
Ques2: Given a table of the form:
Product Sold on
A 1/1/1980
B 1/1/1980
C 1/1/1980
A 1/1/1980
B 1/1/1980
C 2/1/1980
A 2/1/1980
There are 30 products and 10,000 records of such type. Also the month period during which sales happened is given to u.
Write the program to display the result
as:
Product Month No. of copies
A January 12
A February 15
A March 27
B January 54
B February 15
B March 10
C January 37
Ques3: Definition of priority queue was
given. We have to implement the priority queue using array of pointers with the
priorities given in the range 1..n.
The array could be accessed using the variable top. The list corresponding to
the array elements contains the items having the priority as the array index.
Adding an item would require changing the value of top if it has higher priority
than top.
Extracting an item would require deleting the first element from the
corresponding queue.
The following class was given:
class PriorityQueue
{
int *Data[100];
int top;
public:
void put(int item, int priority); // inserts the item with the given priority.
int get(int priority); // extract the element with the given priority.
int count(); // returns the total elements in the priority queue.
int isEmpty(); // check whether the priority queue is empty or not.
};
We had to implement all these class functions.
Ques4: An array of size 5X5 is given to
us. The elements from 1 to 25 are to be inserted in the array, such that
starting from a particular position for an element i, the next element i+1can be
inserted only at the mentioned positions (u,v), and if these all positions are
occupied then it returns giving a count of how many positions have been occupied
in the array:
(u,v) = (x+/-3 , y)
(u,v) = (x , y+/-3)
(u,v) = (x+/-2 , y+/-2).
Example: if the starting element is 1
with the given positions (1,2), then next element 2 can be placed at any one of
the positions marked with *.
_ _ _ _ _
1 _ _ _ *
_ _ _ _ _
_ _ * _ _
* _ _ _ _
Function to be implemented is fun(int start, int end) where start and end will give the start and end coordinate of first element i.e. 1.
There wer three interview rounds: 2
tech interviews and one HR.
In the first tech interview ques from C/C++, operating systems and DBMS wer
asked. they emphasised on RDBMS.. also some puzzles wer asked.
The second tech interview, we had to explain the codes which we wrote in the
written exam and some optimizations to be done with them.
The third HR round was just a formality... every thing about ur life, ur
parents, ur success, ur good times, bad times, wat made u happy, ur strengths,
weakness, ur life experience and so on....