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 3892

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 51872

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

4 14527

what is differnence b/w macro & functions

1 4024

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

7 9825

program to find the ASCII value of a number

8 24079

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 19078

What is meaning of tree

1971

to find the program of matrix multiplication using arrays

Bhel,

6 21118

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

1868

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

2 4782

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 28227

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 4647

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 4330

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Un-Answered Questions { C }

1) write a program to generate 1st n fibonacci prime numbers using Nested if 2) write a program to generate twin prime numbers from m to n using nested if 3) write a program to check whether a given integer is a strong number or not using nested if 4) Write a program to generate prime factors of a given integer using nested if 5)write a program to generate prime numbers from m to n using nested if 6)write a program to generate perfect numbers from m to n using nested if 7)write a program to generate the pallindromes from m to n using neste if 8)write a program to generate armstrong numbers from m to n using nested if 9)write a program to generate strong numbers from m to n using nested if

4605

What is the most efficient way to store flag values?

1192

Can the size of an array be declared at runtime?

1088

How do I use void main?

1091

Why does everyone say not to use gets?

1107

Is main an identifier in c?

1144

What is the main difference between calloc () and malloc ()?

1157

What type is sizeof?

1039

Do you know what are bitwise shift operators in c programming?

1105

Tell me can the size of an array be declared at runtime?

1048

What is the purpose of 'register' keyword?

1100

7-Given an index k, return the kth row of the Pascal's triangle. For example, when k = 3, the row is [1,3,3,1]. For reference look at the following standard pascal’s triangle.

2760

what is associativity explain what is the precidence for * and & , * and ++ how the folloing declaration work 1) *&p; 2) *p++;

2644

Explain 'bit masking'?

1089

What is pointer and structure in c?

1186

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