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 6622

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 75916

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

7 71275

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

3 8921

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

2 6447

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

Alcatel,

4 32687

implement OR gate without using any bitwise operator.

Alcatel, Wipro,

1 5809

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

Lucent,

2 5330

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 8334

what is difference between C and C++

4 7404

which is faster execution: loops or recursion?

3 6980

#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 7730

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

2971

what is computer

4 5975

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 8392

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Un-Answered Questions { C }

Explain what is a 'locale'?

1026

Explain what is #line used for?

1019

What is structure of c program?

1099

What is the difference between NULL and NUL?

1255

Write a program in c to replace any vowel in a string with z?

1091

What is the return type of sizeof?

1036

Why functions are used in c?

1085

Differentiate fundamental data types and derived data types in C.

997

What is the use of function overloading in C?

1115

Where can I get an ansi-compatible lint?

1112

What are the disadvantages of external storage class?

1019

Explain bit masking in c?

1091

What are data types in c language?

1022

What is an array? What the different types of arrays in c?

1123

What is the code for 3 questions and answer check in VisualBasic.Net?

2122

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