C Interview Questions
Questions Answers Views Company eMail

To what value are pointers initialized? 1) NULL 2) Newly allocated memory 3) No action is taken by the compiler to initialize pointers.

Aricent,

4 8431

Which of the following sorts is quickest when sorting the following set: 1 2 3 5 4 1) Quick Sort 2) Bubble Sort 3) Merge Sort

7 14993

Which of the following data structures is on average the fastest for retrieving data: 1) Binary Tree 2) Hash Table 3) Stack

3 12353

Evaluate the following: int fn(int v) { if(v==1 || v==0) return 1; if(v%2==0) return fn(v/2)+2; else return fn(v-1)+3; } for fn(7); 1) 10 2) 11 3) 1

6 17844

What character terminates all strings composed of character arrays? 1) 0 2) . 3) END

3 7114

True or false: If you continuously increment a variable, it will become negative? 1) True 2) False 3) It depends on the variable type

7 14709

Which of the following is not a valid declaration for main ()? 1) int main() 2) int main(int argc, char *argv[]) 3) They both work

2 12246

Which is not valid in C? 1) class aClass{public:int x;} 2) /* A comment */ 3) char x=12;

7 9461

void swap(int a,int b) { a=a+b; b=a-b; a=a-b; } in this code always gives the same result for all case

Accenture, TCS,

9 16631

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.'%')

23 74623

in iso what are the common technological language?

1716

Write a program or provide a pseudo code to flip the 2nd bit of the 32 bit number ! (Phone Screen)

NetApp, PTU, Wipro,

1 6369

what is the diff b/w static and non static variables in C. Give some examples plz.

Wipro,

3 13359

Add 2 64 bit numbers on a 32 bit machine

EMC, Hyderabad Central University, NetApp,

3 16688

Write a program to accept a character & display its corrosponding ASCII value & vice versa?

9 35844


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Un-Answered Questions { C }

What is struct node in c?

693


When should the const modifier be used?

737


c program for searching a student details among 10 student details

1737


What is the package for freshers(Non IIT) in amazon(hyderabad). And what is the same for those who are a contract employee.

3810


find the value of y y = 1.5x+3 for x<=2 y = 2x+5 for x>2

1617






Define recursion in c.

784


What is malloc return c?

673


What is the difference between array and pointer in c?

681


What is structure and union in c?

684


How can you check to see whether a symbol is defined?

680


What is cohesion and coupling in c?

672


how to make a scientific calculater ?

1657


In C programming, how do you insert quote characters (‘ and “) into the output screen?

1042


What is the collection of communication lines and routers called?

697


What is the description for syntax errors?

707