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 3900

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 51895

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

4 14545

what is differnence b/w macro & functions

1 4030

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

7 9843

program to find the ASCII value of a number

8 24104

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 19100

What is meaning of tree

1972

to find the program of matrix multiplication using arrays

Bhel,

6 21131

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 4789

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 28252

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 4656

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 4343

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Un-Answered Questions { C }

Compare and contrast compilers from interpreters.

1126

How can I prevent another program from modifying part of a file that I am modifying?

1065

Write a client and server program in C language using UDP, where client program interact with the Server as given below: i) The client begins by sending a request to send a string of 8 characters or series of 7 numbers, the server sends back a characters or numbers as per the request of the client. ii) In case of series of 7 numbers: The client sends a multiplication of numbers, to the server. iii) In case of a string of 8 characters: The client sends a reverse order of string to the server.. iv) Server will send an acknowledgment to the client after receiving the correct answer

4376

What is the use of ?

1045

What is meant by 'bit masking'?

1397

Which programming language is best for getting job 2020?

1057

Explain which of the following operators is incorrect and why? ( >=, <=, <>, ==)

1043

What is #include stdio h and #include conio h?

1117

I came across some code that puts a (void) cast before each call to printf. Why?

1226

How can a process change an environment variable in its caller?

1193

What is data structure in c programming?

1088

What library is sizeof in c?

1093

Explain how can I pad a string to a known length?

1205

What is a node in c?

985

What are header files? What are their uses?

1223

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