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

C Interview Questions

Questions Answers Views Company eMail

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

TCS,

3 12082

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

Microsoft,

14 20627

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 8254

what is function pointer?

Wipro,

2 5549

write a c program to convert fahrenheit to celsius?

TCS,

4 13344

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.

3681

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

2564

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

3408

Program to simulate second clock

2 4108

to convert a string without using decrement operater and string functions

1 3662

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

6 12496

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

HCL,

3 12406

Difference between for loop and while loop?

1 4667

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

1 3264

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

3 4161

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Un-Answered Questions { C }

Why c is called a middle level language?

1111

Why c is called a mid level programming language?

1074

Why double pointer is used in c?

1043

List some of the dynamic data structures in C?

1245

Write a Program to find whether the given number or string is palindrome.

1278

In c programming write a program that will print 10 multiples of 3 except 15,18,21 using looping

1514

code for replace tabs with equivalent number of blanks

2167

the maximum length of a character constant can be a) 1 character b) 8 characters c) 256 chaacters d) 125 characters

2302

we called a function and passed something do it we have always passed the "values" of variables to the called function. such functions calles are called a) calls by reference b) calls by value c) calls by zero d) none of the above

1163

What would happen to X in this expression: X += 15; (assuming the value of X is 5)

1952

A SIMPLE PROGRAM OF GRAPHICS AND THEIR OUTPUT I WANT SEE WAHAT OUTOUT OF GRAPHICS PROGRAM

2133

What are the 4 types of unions?

1041

What are the advantages of using linked list for tree construction?

1104

What is pointers in c with example?

1078

Should I use symbolic names like true and false for boolean constants, or plain 1 and 0?

1069

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