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,

7332

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,

2617

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 6440

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 13151

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 6245

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 43425

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

Qatar University,

3186

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 10654

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 6049

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

Oracle,

3 9843

"c sharp" code for factorial using static variables

9 27531

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

3 5274

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 14347

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

Google,

11 15759

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 3220


Un-Answered Questions { Code Snippets }

I'm calling a JS fcn that fires AJAX to a webmethod and returns a boolean. How do I retrieve the return value in the codebehind? (VB) I can set a hiddenfield value in the JS, but if it's async how can my VB know when it's changed?

670


Write a program to convert postfix expression to infix expression.

4110


develop a program to calculate and print body mass index for 200 employees

2208


how to create an anonymous function

1732


How to swap two ASCII numbers?

2442






3) Int Matrix of certain size was given, We had few valu= es in it like this. =97=97=97=97=97=97=97=97=97=97=97 1 = | 4 | | 5 | &= nbsp; | 45 =97=97=97=97=97=97=97=97=97=97=97 &n= bsp; | 3 | 3 | 5 | = | 4 =97=97=97=97=97=97=97=97=97=97=97 34 |&nbs= p; 3 | 3 | | 12 | &= nbsp; =97=97=97=97=97=97=97=97=97=97=97 3 | &nbs= p; | 3 | 4 | = | 3 =97=97=97=97=97=97=97=97=97=97=97 3 | = ; | | | = ; 3 | =97=97=97=97=97=97=97=97=97=97=97 &= nbsp; | | 4 | = ; | 4 | 3 We w= ere supposed to move back all the spaces in it at the end. Note: = If implemented this prog using recursion, would get higher preference.

3317


why do you use macros? Explain a situation where you had to incorporate macros in your proc report? use a simple instream data example with code ?

2258


Write a script to delete all the files in a folder except one desired file.

932


What are the advantages of XML DOM Document?

363


What is the functionality of EnumChildWindows?

470


What is a well formed XML document?

328


Write a python program to swap the first and last value of a list?

510


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

3067


code to create a new window

1754


You have been asked to install a servlet engine (tomcat, glassfish, etc.) for a companies servlets. Assuming the company has an existing web/DBMS server (which may or may not be on the same server), explain in detail how would you implement the development project and a deployment solution.

2125