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

C Interview Questions

Questions Answers Views Company eMail

Write a program to display all the prime nos from 1 to 1000000, your code should not take time more than a minute to display all the nos.

1 2137

Can you think of a logic behind the game minesweeper.

1 2531

Why is it important to memset a variable, immediately after allocating memory to it ?

1 2137

What is output of the following program ? main() { i = 1; printf("%d %d %d\n",i,i++,i++); }

CTS, Wipro,

9 10235

using for loop sum 2 number of any 4 digit number in c language

1 2440

write an algorithm to display a square matrix.

1 2768

How will you allocate memory to a double pointer ?

2 4855

how do you programme Carrier Sense Multiple Access

1 2017

how can make variable not in registers

TCS,

1 3228

what is d pitfalls of registers variables

TCS,

3 5570

what is the hardware model of CFG( context free grammar)

Microsoft,

2777

Define a structure to store the record of library. The record must consist of at least following fields: Title, Author, Edition, Price, Publisher, and Category. -Define functions authorSearch ( ), TitleSearch ( ) and CategorySearch ( ) to search a book with respect to author, title and category. [There can be more than one book, written by one author, in one category]

2 5254

what is bitwise operator?

IBM,

1 3662

what is c?

IBM, TCS,

4 6221

write a program to print data of 5 five students with structures?

1 2102

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Un-Answered Questions { C }

How can I implement sets or arrays of bits?

1099

swap 2 numbers without using third variable?

1179

Do you know the difference between malloc() and calloc() function?

1118

develop algorithms to add polynomials (i) in one variable

2244

ATM machine and railway reservation class/object diagram

5319

write a progrmm in c language take user interface generate table using for loop?

2110

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

2215

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

1895

What is pointers in c with example?

1145

How do you convert strings to numbers in C?

1315

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.

2362

In C language, the variables NAME, name, and Name are all the same. TRUE or FALSE?

1276

The % symbol has a special use in a printf statement. How would you place this character as part of the output on the screen?

1341

What is pointer to pointer in c with example?

1166

Explain the difference between null pointer and void pointer.

1141

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