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

C Interview Questions

Questions Answers Views Company eMail

What is floating point exception error? And what are different types of errors occur during compile time and run time? why they occur?

1 3890

Write a program to remove the C comments(/* */) and C++ comments(//) from a file. The file should be declared in command line.

Persistent, Subex,

4 51869

write a addition of two no. program with out using printf,scanf,puts .

4 14521

what is differnence b/w macro & functions

1 4024

Can u return two values using return keyword? If yes, how? If no, why?

7 9818

program to find the ASCII value of a number

8 24070

please send me papers for Dy. manager IT , PNB. it would be a great help for me.

2398

#define d 10+10 main() { printf("%d",d*d); }

6 19065

What is meaning of tree

1969

to find the program of matrix multiplication using arrays

Bhel,

6 21103

WHICH TYPE OF JOBS WE GET BY WRITING GROUPS .WHEN THE EXAMS CONDUCTED IS THIS EXAMS ARE CONDUCTED EVERY YEAR OR NOT.PLS TELL ME THE ANSWER

1862

write a programe returns the number of times the character appears in the string

2 4780

Write a program that takes three variables(a,b,c) in as separate parameters and rotates the values stored so that value a goes to b,b,to c and c to a

7 28223

1. Duplicate the even numbers. -1 Sample I/O Array1:- 4,2,24,3,22 Updated Array:- 4,4,2,2,24,24,3,22,22 2. Reverse the array in a region - 1 Sample I/O Array1:- 4,2,24,3,22,41,21 Enter Region:- 2,5 Update Array:-4,41,22,3,24,2,21 3. Store first the even digits in an array and then odd digits in same array -2 Sample I/O Array1:- 4,2,24,3,22,41,21 Array 2:- 4,2,2,4,2,2,4,2,3,1,1 4. Store the count of the digits in all numbers in an array and print the count. -2 Sample I/O Array1:- 4,2,9,3,7,41,28 Array 2:- 0,1,1,1,2,0,0,1,1,1 1-1;2-1;3-1;4-2;7-1;8-1;9-1 5. Store all palindrome numbers in to another array -2 Sample I/O Array1:- 4,22,9,313,7,141,28 Array 2:- 4,22,9,313,141 6. Arrange the array in such a way that odd numbers come first and then even numbers -1 Sample I/O Array1:- 4,22,9,313,7,141,28 Update Array1:- 9,313,7,141,4,22,28 7. Store into another array by inserting it in the right place - 2 Sample I/O Array1:- 4,22,9,313,7,141,28 Array2:- 4 /4,22 /4,9,22 /4,9,22 ,313 /4,7,9,22 ,313 /4,7,9,22 ,141,313 / 4,7,9,22,28 ,141,313 8. Merge two sorted arrays in a sorted fashion - 3 Sample I/O Array 1:- 3,6,7,9,11,16 Array 2:- 1,2,5,7,20 Array 3:- 1,2,3,5,6,7,9,11,16,20 9. Upadte the array so that an array element is followed by its revere - 1 Sample I/O Array 1:- 13,63,74,9,11,16 Updated Array 1:- 13,31,63,36,74,47,9,9,11,11,16,16 10.Spread the digits of the array in the same array. -1 Sample I/O Array 1:- 13,63,74,9,11,16 Updated Array 1:-1,3,6,3,74,9,1,1,1,6 11.Shift the boundary of array to have only 2 digit numbers. Sample I/O Array 1:- 139,643,74,9,101,126 Updated Array 1:- 13,96,43,74,91,11,26 12.Print the largest occuring digit in an array of N numbers. Sample I/O Array 1:- 13,63,74,9,11,16 1 occurs most.

Intel,

2 4642

Read N characters in to an array . Use functions to do all problems and pass the address of array to function. 1. Print only the alphabets . If in upper case print in lower case vice versa.

1 4329

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Un-Answered Questions { C }

What is the difference between a string and an array?

1207

write a program using linked list in which each node consists of following information. Name[30] Branch Rollno Telephone no i) Write the program to add information of students in linked list

2808

difference between object file and executable file

6724

What are structure members?

1093

write a program to input 10 strings and compare without using strcmp() function. If the character of one string matches with the characters of another string , sort them and make it a single string ??? example:- str1="Aakash" st2="Himanshu" str="Uday" output:- Aakashimanshuday (please post the answer as quickly as possible)

2102

A program is required to print your biographic information including: Names, gender, student Number, Cell Number, line of study and your residential address.

1719

what is different between auto and local static? why should we use local static?

1128

What is the difference between arrays and pointers?

1129

Q.1 write a program to create binary tree 1 to 16 numbers? Q.2 write a program to creat a binary search tree for the member that is given by user?

2545

What header files do I need in order to define the standard library functions I use?

1059

When should the register modifier be used? Does it really help?

968

Explain main function in c?

1082

What is variable in c example?

1073

Is it better to use malloc() or calloc()?

1115

What is a built-in function in C?

1604

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