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C++ Code Interview Questions

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,

15569

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

2880

Code for Method of Handling Factorials of Any Size?

1778

Code for Easily Using Hash Table?

2145

Code for Two Classes for Doing Gzip in Memory?

2606

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

2353

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

TCS,

11685

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.

2806

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

6015

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

13839

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.

16649

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--; } } }

8170

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!!!

14206

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

5838

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?

6834

Un-Answered Questions { C++ Code }

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?

2706

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.

3156

write a program that reads a series of strings and prints only those strings begging with letter "b"

2332

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.

1755

write a program to calculate the amount of investment after a period n years if the principal investors was p and interest is calculated using compound interest,formular=a=p(1+r)^n

2139

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; }

1847

Question 1: Implement a base class Appointment and derived classes Onetime, Daily, Weekly, and Monthly. An appointment has a description (for example, “see the dentist”) and a date and time. Write a virtual function occurs_on(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill a vector of Appointment* with a mixture of appointments. Have the user enter a date and print out all appointments that happen on that date. *This Should Be Done IN C++

253

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

2006

how to take time as input in the format (12:02:13) from user so that controls remains between these columns?

1585

What output does the following code generate? Why? What output does it generate if you make A::Foo() a pure virtual function? class A { A() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; class B : public A { B() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; int main(int, char**) { A objectA; B objectB; return 0; }

410

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

2969

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

2724