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

C Interview Questions

Questions Answers Views Company eMail

How to reverse a linked list

Aricent, Fidelity, IBM, TCS,

1 6688

1. Write a C program to count the number of occurrence of a specific word in the given strings. (for e.g. Find how many times the word “live” comes in the sentence “Dream as if you’ll live forever, live as if you’ll die today ”)

Eskom, TCS,

12 76325

write a c program to store and print name,address,roll.no of a student using structures?

7 71483

Write a C program to remove the repeated characters in the entered expression or in entered characters(i.e) removing duplicates

3 9052

Reverse the bit order in a single macro. eg. i/p = 10010101 --> o/p = 10101001

2 6551

implement NAND gate logic in C code without using any bitwise operatior.

Alcatel,

4 32902

implement OR gate without using any bitwise operator.

Alcatel, Wipro,

1 5885

Is the below things valid & where it will be stored in memory layout ? static const volatile int i; register struct { } ; static register;

Lucent,

2 5428

in one file global variable int i; is declared as static. In another file it is extern int i=100; Is this valid ?

Infosys, NetApp,

4 8514

what is difference between C and C++

4 7550

which is faster execution: loops or recursion?

3 7118

#include #include void main() {clrscr(); char another='y'; int num; for(;another=='y';) { printf("Enter a number"); scanf("%d",&num); printf("squre of %d is %d",num,num*num); printf("\nwant to enter another number y/n"); scanf("%c",&another); } getch(); } the above code runs only one time.on entering 'y' the screen disappeares.what can i do?

3 7840

Simplify the program segment if X = B then C ← true else C ← false

3018

what is computer

4 6138

we compile c program in 32 processor and 64 bit processor .exe file is created in both the processors. if we want to run .exe file in 64 bit processor which is created in 32 bit processor. is that .exe file is run or not if it is not run why?

HP, Wipro,

4 8555

Post New C Questions

Un-Answered Questions { C }

What is the use of c language in real life?

1026

Do you know pointer in c?

1052

What is typeof in c?

1015

How will you delete a node in DLL?

1294

Why is void main used?

1096

When should volatile modifier be used?

1013

What library is sizeof in c?

1093

Why should I use standard library functions instead of writing my own?

1272

What is data type long in c?

1078

What is malloc return c?

1028

which of the following shows the correct hierarchy of arithmetic operations in C a) (), **, * or/,+ or - b) (),**,*,/,+,- c) (),**,/,*,+,- d) (),/ or *,- or +

1739

Write a program to print fibonacci series using recursion?

1064

Differentiate between null and void pointers.

1166

List the variables are used for writing doubly linked list program.

2034

What is indirection? How many levels of pointers can you have?

1142

For More Un-Answered { C } Questions Click Here