C++ Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

STL (140)
OOPS (873)
C++ General (2409)

C++ Interview Questions

Questions Answers Views Company eMail

When is a template better solution than a base class??

emc2,

2 8876

Explain calling an object's member function(declared virtual)from its constructor?

1 3548

What is the concept of object oriented program?

6 8198

You're given an array containing both positive and negative integers and required to find the sub-array with the largest sum (O(N) a la KBL). Write a routine in C for the above.

4 12505

Given an array of size N in which every number is between 1 and N, determine if there are any duplicates in it. You are allowed to destroy the array if you like. [ I ended up giving about 4 or 5 different solutions for this, each supposedly better than the others ].

1 5925

Give a very good method to count the number of ones in a "n" (e.g. 32) bit number.

3 8730

wht is ditch

2284

When you define a integer it gets stored in which data structure?(Stack or a heap)

emc2,

2 6161

What is a scope operator and tell me its functionality?

emc2,

3 6241

What is difference between function overloading and overriding?

emc2,

1 6268

What is difference between new and malloc?

emc2,

7 11932

What is difference between #define and const?

emc2,

3 7927

Write pseudo code for push in a stack?

emc2,

2 11108

What is Hashing and how is it done? Pictorial form?

emc2, Wipro,

2 8973

Polymorphism with an example?

Accenture, emc2,

8 15070

Un-Answered Questions { C++ }

What is the hardest coding language to learn?

1090

How do I get good at c++ programming?

1258

How do you define/declare constants in c++?

1111

Define namespace.

1638

How to tokenize a string in c++?

1114

Describe public access specifiers?

1171

Which language is not a true object oriented programming language?

1185

What can I safely assume about the initial values of variables which are not explicitly initialized?

1120

Which method cannot be overridden?

1178

Is c++ pass by reference or value?

1127

What does oop mean in snapchat?

1303

Why do we use inheritance?

1197

What is abstraction in oops with example?

1357

Is map ordered c++?

1152

What do you mean by overloading?

1134

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