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

C Interview Questions

Questions Answers Views Company eMail

how can i include my own .h file EX:- alex.h like #include, rather than #include"alex.h"

1 3521

how i m write c program 1.check prime number 2.prime number series

1 4048

main() { int a,b; printf("%d,%d",scanf("%d%d",&a,&b)); } => do u mean above program's output... =>output will be:2,whatever you enter value for b. =>because scanf is a library fn which will return how many arguements it processes, and second value you are right mr.Satya but i found my self unable to understand that for the first time scanf returns the no of successful matches but how for the second time it returns the value of 'b'.while a function should return the same 'r' value every time.

Cisco,

1 9054

write a program which the o/p should b in such a way that s triangle if I/p is 3,a Square/rectangle if I/P=4,a pentagon if I/P=5 and so on...forget about the I/P which is less than 3

ADP,

1 2144

write a program to find lcm and hcf of two numbers??

1 5678

1. What will be the output of the following programs. a) #include Main() { Int x=4; While(x==1) { X=x-1; Printf(“%d”,x); --x; } }

CSC,

7 10086

what are threads ? why they are called light weight processes ? what is the relation between process and threads ?

1 3422

what is difference between userlevel threads and kernel level threads ?what are the trades offs between these two approaches ? what approach is most frequently used and why ?

1 6038

What is that continue statement??

4 5969

find the minimum of three values inputted by the user

3 6466

write a program that accepts 3 numbers from the user. dispaly the values in a descending order.

3 6824

Read the following data in two different files File A: aaaaaaaadddddddd bbbbbbbbeeeeeeee ccccccccffffffff File B: 11111111 22222222 33333333 By using the above files print the following output or write it in the Other file as follows aaaaaaaa11111111dddddddd bbbbbbbb22222222eeeeeeee cccccccc33333333ffffffffffff

1 3413

is forign key will be unique key any table or not?

2 4225

can we declare a variable in different scopes with different data types? answer in detail

TCS,

3 5597

An array name contains base address of the array. Can we change the base address of the array?

NMIMS, Wipro,

4 14013

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Un-Answered Questions { C }

What is pointers in c with example?

1151

will u please send me the placement papers to my mail???????????????????

1903

What is the difference between union and anonymous union?

1388

develop algorithms to add polynomials (i) in one variable

2249

Explain the difference between null pointer and void pointer.

1147

what is ur strangth & weekness

2559

How can I implement sets or arrays of bits?

1108

write a c program to find the sum of five entered numbers using an array named number

2224

swap 2 numbers without using third variable?

1187

Sir,please help me out with the code of this question. Write an interactive C program that will encode or decode multiple lines of text. Store the encoded text within a data file, so that it can be retrieved and decoded at any time. The program should include the following features: (a) Enter text from the keyboard, encode the text and store the encoded text in a data file. (b) Retrieve the encoded text and display it in its encoded form. (c) Retrieve the encoded text, decode it and then display the decoded text. (d) End the computation. Test the program using several lines of text of your choice.

2381

What is the general form of a C program?

1087

Is int a keyword in c?

1052

Can a function be forced to be inline? Also, give a comparison between inline function and the C macro?

1171

What is pointer to pointer in c with example?

1176

What are compound statements?

1264

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