C Interview Questions
Questions Answers Views Company eMail

logic for generating all the combinations of the any number of given letters. ex::::::::: if a,b,c,d are given the o/p should be abcd,dcba,dbac,bcad,................ 4*3*2*1 combinations............

Infosys,

2 6803

What is a Genralised LInked List?? Please give a detailed explation of it..

1 2975

what is ur strangth & weekness

Cognizant, LG Soft, NetEnrich,

1802

Explain following declaration int *P(void); and int (*p)(char *a);

3 22413

What is external and internal variables What is dynamic memory allocation what is storage classes in C

3 13423

can anyone please tell me wat is backlogs... i was looking for the job openings where i read this.. eligibility criteria minimum 70% in degree without backlogs. is that arrear.. if so is it standing arrear or history of arrears... please help me...

CTS, Indian Navy, L&T, Microsoft, SSB, TCE, TCS,

11 62476

what is the return value (status code) of exit() function.... what the arguments(integer value) passed to it means....

TCS,

1 3836

how to find sum of digits in C?

CTS, Infosys,

21 30791

HOW TO SWAP TWO NOS IN ONE STEP?

Satyam,

16 18956

how memory store byte

Huawei,

4 7177

biggest of two no's with out using if condition statement

8 10300

difference of two no's with out using - operator

7 7459

what is the stackpointer

2 4263

how to find the binary of a number?

Infosys,

10 12599

Can a binary search tree be used as an index? If yes, how? Explain

TCS,

2379


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Un-Answered Questions { C }

How can you determine the maximum value that a numeric variable can hold?

625


What does %d do?

704


writ a program to compare using strcmp VIVA and viva with its output.

1507


Can true be a variable name in c?

549


What is the difference between malloc calloc and realloc in c?

636






Here is a good puzzle: how do you write a program which produces its own source code as output?

587


explain how do you use macro?

655


Write a function that will take in a phone number and output all possible alphabetical combinations

587


What is a wrapper function in c?

571


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

687


Write the syntax and purpose of a switch statement in C.

608


Explain the use of #pragma exit?

684


What is the sizeof () a pointer?

540


application areas a 'c' a) operating system b) graphics, interpreter, assembler c) program evalution, communication softwares d) all the above

591


What is f'n in math?

607