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C Interview Questions
Questions Answers Views Company eMail

can we store values and addresses in the same array? explain

TCS,

3 8270

what is the difference between NULL('\0') and 0?

Microsoft,

14 13134

IS it possible to define a zero sized array in c.if it is possible how can the elements of that array can be accessed.array index starts from zero,if it is possible to define zero sized array how can be its first element can be accesseed.

TCS,

5 4867

what is function pointer?

Wipro,

2 3579

write a c program to convert fahrenheit to celsius?

TCS,

4 10509

There is a mobile keypad with numbers 0-9 and alphabets on it. take input of 7 keys and then form a word from the alphabets present on those keys.

2592

Write a program to print distinct words in an input along with their count in input in decreasing order of their count

1588

write a program to convert a expression in polish notation (postfix) to inline (normal) something like make 723+* (2+3) x 7 (not sure) just check out its mainly printing expression in postfix form to infix

2490

Program to simulate second clock

2 2403

to convert a string without using decrement operater and string functions

1 2237

main() { printf("\n %d %d %d",sizeof('3'),sizeof("3"),sizeof(3)); }

6 8470

What is the difference between i++ and i+1 ?(in terms of memory)

HCL,

3 10094

Difference between for loop and while loop?

1 3306

1 1 1 1 2 1 1 3 3 1 1 4 6 4 1

1 2045

1 1 1 1 2 1 1 3 3 1 1 4 6 4 1

3 2222


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Un-Answered Questions { C }

What is the difference between int main and void main?

198


Differentiate between the expression “++a” and “a++”?

256


How are portions of a program disabled in demo versions?

232


How do I get a null pointer in my programs?

211


What is dynamic memory allocation?

268






What are the different data types in C?

241


Is fortran faster than c?

197


What does return 1 means in c?

184


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

3626


What is the translation phases used in c language?

213


Do pointers take up memory?

236


What is ponter?

323


What is the size of structure in c?

207


What is the need of structure in c?

200


Is array a primitive data type in c?

207