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C++ Code Interview Questions
Questions Answers Views Company eMail

what is the best algorithm to sort out unique words from a list of more than 10 million words(1 crore+)? we need the best technique in the terms of execution time.

TCS,

9 19861

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

Microsoft,

3671

Code for Method of Handling Factorials of Any Size?

2486

Code for Easily Using Hash Table?

3030

Code for Two Classes for Doing Gzip in Memory?

3262

Code for Small C++ Class to Transform Any Static Control into a Hyperlink Control?

Wipro,

3055

Write A C++ Program To Input A Number Between 20 To 99 And Display Its Numbername?

TCS,

3 13911

Given 1 to n distinct random number of which n+1th element was duplicated. How do find the duplicate element and explain the time complexity of the algorithm.

Microsoft, NetApp,

3483

Given 1 to n random number, find top 10 maximum numbers and explain the time complexity of the algorithm.

IMO, NetApp,

1 7706

Deriving time complexity of Binary tree and AVL tree, step by step.

NetApp,

4 16220

How reader and writer problem was implemented and come up with effective solution for reader and writer problem in case we have n readers and 1 writer.

Microsoft, NetApp,

6 20574

What is the time complexity T(n) of the following program? a) int n, d, i, j; cin >> n; for (d=1; d<=n; d++) for (i=1; i<=d; i++) for (j=1; j<=n; j += n/10) cout << d << " " << i << " " << j << endl; b) void main() { int n, s, t; cin >> n; for (s = 1; s <= n/4; s++) {t = s; while (t >= 1) { cout << s << " " << t << endl; t--; } } } c) void main() { int n, r, s, t; cin >> n; for (r = 2; r <= n; r = r * 2) for (s = 1; s <= n/4; s++) { t = s; while (t >= 1) { cout << s << " " << t << endl; t--; } } }

CTS, IBM, Infosys, Qatar University,

3 10702

Coin Problem You are given 9 gold coins that look identical. One is counterfeit and weighs a bit greater than the others, but the difference is very small that only a balance scale can tell it from the real one. You have a balance scale that costs 25 USD per weighing. Give an algorithm that finds the counterfeit coin with as little weighting as possible. Of primary importance is that your algorithm is correct; of secondary importance is that your algorithm truly uses the minimum number of weightings possible. HINT: THE BEST ALGORITHM USES ONLY 2 WEIGHINGS!!!

Motorola, Qatar University,

1 15758

Show by induction that 2n > n2, for all n > 4.

Karvy, Qatar University,

2 7567

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,

7832


Post New C++ Code Questions

Un-Answered Questions { C++ Code }

solve the problem in the programming language C++"if a five digit number is input through the keyboard.Write a program to calculate the sum of its digits(hint: use the modulus operator)

3420


write a function that reverse the elements of an array in place.The function must accept only one pointer value and return void.

4571


write a program that creates a sequenced array of numbers starting with 1 and alternately add 1 and then 2 to create the text number in the series , as shown below. 1,33,4,6,7,9,............147,148,150 Then , using a binary search , searches the array 100 times using randomly generated targets in the range of 1 to 150

3767


output for printf("printf");

2537


Write a simple encryption program using string function which apply the substitution method.

6116


Write a (n) algorithm that sorts n distinct integers, ranging in size between 1 and kn inclusive, where k is a constant positive integer. (Hint: Use a kn-element array.)

4989


write a program that reverses the input number of n.Formulate an equation to come up with the answer.

7684


write a program using 2 D that searches a number and display the number of items 12 inputs values input 15,20, 13, 30, 38, 40,16, 18, 20 ,18 ,20 enter no. to search : 20

3806


Create a program to read two random data set in two files named data1.txt and data2.txt manifold contains integer numbers, whereas data2.txt file contains the float type numbers. Simpanlahmasing each into 2 pieces of data that is an array of type integer array and an array of type float, then calculate the average numbers in the second array.

2606


create a stucture student containing field for roll no,class,year and marks.create 10 student annd store them in a file

2712


write a program using virtual function to find the transposing of a square matrix?

3370


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

2683


write a program to convert temperature from fa height into celcius and vise versa,use modular programming

3020


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?

7832


Code for Method of Handling Factorials of Any Size?

2486