C Interview Questions
Questions Answers Views Company eMail

To what value are pointers initialized? 1) NULL 2) Newly allocated memory 3) No action is taken by the compiler to initialize pointers.

Aricent,

4 5184

Which of the following sorts is quickest when sorting the following set: 1 2 3 5 4 1) Quick Sort 2) Bubble Sort 3) Merge Sort

7 10350

Which of the following data structures is on average the fastest for retrieving data: 1) Binary Tree 2) Hash Table 3) Stack

3 8733




Evaluate the following: int fn(int v) { if(v==1 || v==0) return 1; if(v%2==0) return fn(v/2)+2; else return fn(v-1)+3; } for fn(7); 1) 10 2) 11 3) 1

6 8236

What character terminates all strings composed of character arrays? 1) 0 2) . 3) END

3 4833

True or false: If you continuously increment a variable, it will become negative? 1) True 2) False 3) It depends on the variable type

7 7604

Which of the following is not a valid declaration for main ()? 1) int main() 2) int main(int argc, char *argv[]) 3) They both work

2 5991

Which is not valid in C? 1) class aClass{public:int x;} 2) /* A comment */ 3) char x=12;

7 5494




void swap(int a,int b) { a=a+b; b=a-b; a=a-b; } in this code always gives the same result for all case

TCS, Accenture,

9 9525

if a five digit number is input through the keyboard, write a program to calculate the sum of its digits. (hint:-use the modulus operator.'%')

22 46468

in iso what are the common technological language?

897

Write a program or provide a pseudo code to flip the 2nd bit of the 32 bit number ! (Phone Screen)

Wipro, NetApp, PTU,

1 4952

what is the diff b/w static and non static variables in C. Give some examples plz.

Wipro,

3 10462

Add 2 64 bit numbers on a 32 bit machine

NetApp, EMC, Hyderabad Central University,

3 14366

Write a program to accept a character & display its corrosponding ASCII value & vice versa?

9 28761


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Un-Answered Questions { C }

how much salary u want ? why u join in our company? your domain is core sector why u prefer software ?

695


Draw a diagram showing how the operating system relates to users, application programs, and the computer hardware ?

1215


Write a C Program That Will Count The Number Of Even And Odd Integers In A Set using while loop

894


process by which one bit patten in to another by bit wise operation is? (a) masking, (b) pruning, (c) biting, (d) chopping,

1007


2) Write a program that will help Air Traffic Control for an airport to view the sequence of flights ready for take-off. The airport can accommodate 10 flights waiting for take-off at any point in time. Each flight has a unique 3 digit numeric identifier.  Each time a flight takes-off, Air Traffic Control adds a flight to the waitlist. Each time a flight is added to the waitlist, the list of flights waiting to take-off must be displayed.  When a flight is cleared for take-off, Air Traffic Control removes the flight from the waitlist. Each time a flight takes-off, the list of flights waiting to take-off must be displayed.  Sequence of take-off is the sequence of addition to the waitlist

1763






using for loop sum 2 number of any 4 digit number in c language

841


write a program which the o/p should b in such a way that s triangle if I/p is 3,a Square/rectangle if I/P=4,a pentagon if I/P=5 and so on...forget about the I/P which is less than 3

858


Write a program to maintain student’s record. Record should not be available to any unauthorized user. There are three (3) categories of users. Each user has its own type. It depends upon user’s type that which kind of operations user can perform. Their types and options are mentioned below: 1. Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record) 2. Super Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record, Delete Single Record) 3. Guest (Search Record [by Reg. No or Name], View All Records) When first time program runs, it asks to create accounts. Each user type has only 1 account (which means that there can be maximum 3 accounts). In account creation, following options are required: Login Name: <6-10 alphabets long, should be unique> Password: <6-10 alphabets long, should not display characters when user type> Confirm Password: Account Type: Login Name, Password and Account Type should be stored in a separate file in encrypted form. (Encryption means that actual information should be changed and Decryption means that Encrypted information is changed back to the actual information) If any of the above mentioned requirement(s) does not meet then point out mistake and ask user to specify information again. When Program is launched with already created accounts, it will ask for user name and password to authenticate. On successful authentication, give options according to the user’s type.

613


I need a help with a program: Write a C program that uses data input in determining the whole of points A and a whole of circles B. Find two points in A so that the line which passes through them, cut through the maximum number of circles.

701


how we can make 3d venturing graphics on outer interface

2726


write a program to create a sparse matrix using dynamic memory allocation.

3431


write a programe to accept any two number and check the following condition using goto state ment.if a>b,print a & find whether it is even or odd and then print.and a

651


using only #include and #include Write a program in C that will read an input from the user and print it back to the user if it is a palindrome. The string ends when it encounters a whitespace. The input string is at most 30 characters. Assume the string has no spaces and distinguish between and lowercase. So madam is a palindrome, but MadAm is not a palindrome. Use scanf and %s to read the string. Sample Test: Enter a string: madam madam is a palindrome. Enter a string: 09023 09023 is not a palindrome.

435


what are the facialities provided by you after the selection of the student.

918


Badboy is defined who has ALL the following properties: Does not have a girlfriend and is not married. He is not more than 23 years old. The middle name should be "Singh" The last name should have more than 4 characters. The character 'a' should appear in the last name at least two times. The name of one of his brothers should be "Ram" Write a method: boolean isBadBoy(boolean hasGirlFriend , boolean isMarried, int age , String middleName , String lastName , String[] brotherName); isHaveGirlFriend is true if the person has a girlfriend isMarried is true if the person is married age is the age of the person middleName is the middle name of the person lastName is the last name of the person brotherName is the array of the names of his brothers

617