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Code Snippets Interview Questions
Questions Answers Views Company eMail

Performance Algorithm A performs 10n2 basic operations and algorithm B performs 300 lg n basic operations. For what value of n does algorithm B start to show its better performance?

ASD Lab, Qatar University, UNV,

7834

Complexity T(n) What is the time complexity T(n) of the following portions of code? For simplicity, you may assume that n is a power of 2. That is, n = 2k for some positive integer k. a) ? for (i = 1; i <= n; i++) { j = n; cout << i << ? ? j << ? ? << endl; } b) ? for (i = 0; i <= n; i += 2) { j = n; cout << i << ? ? j << ? ? << endl; } c) ? for (i = n; i >= 1; i = i/2) { j = n; cout << i << ? ? j << ? ? << endl; } d) for (i = 1; i <= n; i++) { j = n; while (j >= 0) { cout << i << ? ? j << ? ? << endl; j = j - 2; } }

Qatar University,

3101

Complexity T(n) Write a linear-time algorithm that sorts n distinct integers, each of which is between 1 and 500. Hint: Use a 500-element array. (Linear-time means your algorithm runs in time c*n + b, where c and b are any constants that do not depend on n. For example, your algorithm can run in time n, or time 2n + 1, or time 5n + 10, or time 100n + 6, but not time c*n*n = c*n?.)

Qatar University,

1 7278

Subsets Write an algorithm that prints out all the subsets of 3 elements of a set of n elements. The elements of the set are stored in a list that is the input to the algorithm. (Since it is a set, you may assume all elements in the list are distinct.)

CSC, Qatar University,

1 14195

Min-Max Write an algorithm that finds both the smallest and largest numbers in a list of n numbers and calculate its complexity T(n).

Infosys, Qatar University,

1 7223

Min-Max Write an algorithm that finds both the smallest and largest numbers in a list of n numbers and with complexity T(n) is at most about (1.5)n comparisons.

ABC, College School Exams Tests, ITC Infotech, Kyambogo University, Qatar University,

10 46699

Teta-Omeg-Big-Oh Show that f(n) = n2 + 3n3 is ;(n3).

Qatar University,

3629

Faster Computers Suppose you have a computer that requires 1 minute to solve problem instances of size 1000. What instance sizes can be run in 1 minute if you buy a new computer that runs 1000 times faster than the old one, assuming the following time complexities T(n) for our algorithm? (a) T(n) = O(n). (b) T(n) = O(n3). (c) T(n) = O(10n).

Qatar University,

1 11648

Algorithm in O(2n) Presently we can solve in our hypothetical machine problem instances of size 100 in 1 minute using algorithm A, which is a O(2n). We would like to solve instances of size 200 in 1 minute using algorithm A on a new machine. What is the speed of the new machine should be?

ABC, Qatar University,

2 7017

Write a sql query to find n'th maximum in the database table.

Oracle,

3 10985

"c sharp" code for factorial using static variables

9 30442

how to use textfile for taking value for parametrization instead of datatable or global sheet

3 6329

How do you sort a Linked List (singly connected) in O(n) please mail to pawan.10k@gmail.com if u can find an anser...i m desperate to knw...

Microsoft, MSD, Oracle,

6 16113

write the function. if all the character in string B appear in string A, return true, otherwise return false.

Google,

11 19149

Write a Program in Visual Basic by means of which we can send any data from Visual basic program to any other application running on that machine whether that application supports OLE or not.....

1 3914


Un-Answered Questions { Code Snippets }

What is CDATA?

626


How to Split Strings with Regex in Managed C++ Applications?

3675


What is XML Parser?

710


How can restrict user to type upto 8 characters in textbox in php?

1950


Dear sirs, Hi, I would like to inform you that I want to perform a project using MLP neural network to recognize binary images containing three types of geometric shapes such as squares,rectangels and circles. Furthermore,each image includes only one geometric type. The output of network would be: '1' if the network detects square shape. '2' if the network detects rectangle shape. '3' if the network detects circle shape. '4' if none of these shapes detected. Would you please send me a matlab source code for this project? Your prompt reply would be so appreciated. regards,

2106


What software is available for XML?

632


Write a python program to check if a number is a palindrome or not?

813


write a c program which takes 20 numbers in an array as input from user and rearrange them in two different array defining even or odd

3111


Hello Sir, Thanks for the Solution but, can you pls. Explain the coding for the Static Function & static variable from the below coding....waiting for Ans. class fact { public static void Main() { fact f=new fact(); int x=1; //Declaration of x as 1 int k=Convert.ToInt32(Console.ReadLine()); for(int i=1;i<=k;i++) { x= x *i; } System.Console.WriteLine(x); } }

2418


To Write a C program to remove the repeated characters in the entered expression or in entered characters(i.e) removing duplicates. String contains only lowercase characters ['a'-'z']

994


write a code to generate pseudorandom numbes

2360


What is the functionality of EnumWindows?

556


how to Scroll a DIV content

2574


could you please send the program code for multiplying sparse matrix in c????

3587


Design a timer circuit using VHDL which has the following: input : start_timer(ST) output: long_time(LT) short_time(ST) when the timer is triggered by the ST(either 0 or 1) signal the timer should generate two timing signals accordingly.While the long time is going ON the other should be OFF and vice versa.

2439