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 12846

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

Microsoft,

2447

Code for Method of Handling Factorials of Any Size?

1318




Code for Easily Using Hash Table?

1625

Code for Two Classes for Doing Gzip in Memory?

2074

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

Wipro,

1915

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

TCS,

3 10189

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,

2358




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

NetApp, IMO,

1 5112

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

NetApp,

4 12226

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 14393

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 6648

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 12621

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

Karvy, Qatar University,

2 4694

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,

5580


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Un-Answered Questions { C++ Code }

3. Program to find the Sum of give series. a. (1)+(1+2)+(1+2+3)+(1+2+3+4)+……………………………….. b. 1/1+1/9+1/25+1/49+……………...

3654


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

2447


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.

1408


1+1/2!+1/3!+...+1/n!

1233


Write a C/C++ program that connects to a MySQL server and checks if the InnoDB plug-in is installed on it. If so, your program should print the total number of disk writes by MySQL.

1393






i really need help about this.. write a program to display the set of odd and even numbers separately. find the highest and lowest value of the given numbers.

1262


what mean void creat_object?in public class in this code class A{ public: int x; A(){ cout << endl<< "Constructor A";} ~A(){ cout << endl<< "Destructor A, x is\t"<< x;} }; void create_object(); void main() { A a; a.x=10; { A c; c.x=20; } create_object(); } void create_object() { A b; b.x=30; }

1367


output for printf("printf");

1020


Code for Easily Using Hash Table?

1625


Ask the user to input three positive integers M, N and q. Make the 2 dimensional array of integers with size MxN, where all the elements of I (I = 1,…,M) line will be members of geometrical progression with first element equal to the number of line (I) and denominator q.

2665


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

1427


i don't know about working of nested for loop can any one help me

1134


Write a C/C++ program that connects to a MySQL server and displays the global TIMEZONE.

3798


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

1553


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

1249