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

C Interview Questions

Questions Answers Views Company eMail

what is the difference between #include and #include "stdio.h" ?

3 9300

Why preprocessor should come before source code?

2 4838

What is a far pointer?What is the utility?

4 6765

Difference between null pointer and dangling pointer?

GE, Wipro,

7 22727

1. Write the function int countchtr(char string[ ], int ch); which returns the number of times the character ch appears in the string. Example, the call countchtr(“She lives in NEWYORK”, ‘e’) would return 3.

4 7318

what are the languages used in c#?

Infosys,

3 5823

write an algorithm to get a sentence and reverse it in the following format: input : I am here opuput: Here Am I note: first letter of every word is capiatlised

3 6497

write a 'c' program to sum the number of integer values

8 16905

How to convert a binary number to Hexa decimal number?? (Note:Do not convert it into binary and to Hexadecimal)

iLantus, Subex,

1 7497

Find the middle node in the linked list?? (Note:Do not use for loop, count and count/2)

Subex,

6 13479

hw can we delete an internal node of binary search tree the internal node has child node..plz write progarm

TCS,

2068

I use turbo C which allocates 2 bytes for integers and 4 bytes for long. I tried to declare array of size 500000 of long type using the following code... long *arr; arr=(long *)(malloc)(500000 * sizeof(long)); It gives a warning that "Conversion may lose significant digits in function main"... And the resulting array size was very less around 8400 as compared to 500000. Any suggestions will be welcomed....

2 5792

Total of how many functions are available in c?

3 6219

size maximum allocated by calloc()

DELL,

3 8996

we all know about the function overloading concept used in C++ and we all learnt abt that.... but that concept is already came in C in a very smaller propotion ... my question is IN WHICH CONCEPT THERE IS A USE OF FUNCTION OVERLOADING IS USED in C language?????????????

Google,

4 7911

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Un-Answered Questions { C }

What is hungarian notation? Is it worthwhile?

1277

Why do we use main function?

1238

What does the error message "DGROUP exceeds 64K" mean?

1277

An application package has been provided to you without any documents for the following application. The application needs to be tested. How will you proceed?

1300

What is the difference between if else and switchstatement

2010

What is the use of clrscr?

1161

Differentiate between a structure and a union.

1337

To print the pattern 1 2 3 4 5 10 17 18 19 6 15 24 25 20 7 14 23 22 21 8 13 12 11 10 9

2693

What does double pointer mean in c?

1263

Explain how can you determine the size of an allocated portion of memory?

1158

Write a program to swap two numbers without using the third variable?

1122

Is there any possibility to create customized header file with c programming language?

1110

What is printf () in c?

1149

can any one tel me wt is the question pattern for NIC exam

2027

Are c and c++ the same?

1113

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