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 17208

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

Microsoft,

3102

Code for Method of Handling Factorials of Any Size?

1996

Code for Easily Using Hash Table?

2382

Code for Two Classes for Doing Gzip in Memory?

2802

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

Wipro,

2552

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

TCS,

3 12479

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,

3020

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

IMO, NetApp,

1 6537

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

NetApp,

4 14672

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 18054

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 8978

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 14793

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

Karvy, Qatar University,

2 6423

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,

7325


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)

2923


Code for Method of Handling Factorials of Any Size?

1996


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

2207


how to diplay a external image of output on winxp by using c & c++,

2925


write a program that can LOCATE and INSERT elements in array using c++ programming languages.

3423






how to write a program that opens a file and display in reverse order?

2558


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

5527


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

2207


Write a program that print in screen a tree with its height taken from user by entering number of 4 digits and find the odd numbers then calculate the sum of odd numbers so he get the height of tree?

2904


Code for Easily Using Hash Table?

2382


write a function that allocates memory for a single data type passed as a parameter.the function uses the new operator and return a pointer to the allocated memory.the function must catch and handle any exception during allocation

2389


find level of following tree (state, parent) " J,D I,D H,C E,B F,B G,C B,A D,A C,A A,& K,E L,E L,F M,F N,G O,H P,I P,H Q,I R,J S,K U,P T,L

1996


write a program to perform generic sort in arrays?

2611


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

1936


How can I Draw an ellipse in 3d space and color it by using graph3d?

2123