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

C Interview Questions

Questions Answers Views Company eMail

what is c

1 3633

How Many Header Files in c?

TCS,

2 5656

praagnovation

2287

Given a number N, product(N) is the product of the digits of N. We can then form a sequence N, product(N), product(product(N))… For example, using 99, we get the sequence 99, 99 = 81, 81 = 8. Input Format: A single integer N Output Format: A single integer which is the number of steps after which a single digit number occurs in the sequence. Sample Test Cases: Input #00: 99 Output #00: 2 Explanation: Step - 1 : 9 * 9 = 81 Step - 2 : 8 * 1 = 8 There are 2 steps to get to this single digit number. Input #01: 1137638147

2 5459

Do you know what is a programing language ?

2005

i am using gsm modem ! I USE CMGL COMMAND TO DISPLAY THE LIST OF MESSAGES ! I WANT TO READ EACH MESSAGE ONE BY ONE AND GET EACH MESSAGE INDEX USING C PROGRAM ! THE RESPONSE OF THE MODULE AFTER AT+CMGL IS ---CMGL: 1,"REC READ","+85291234567",,"07/05/01,08:00:15+32",145,37 It is easy to list SMS text messages.---- I WANT THE PROGRAM TO GET THE NUMBER "37"{MESSAGE LENGTH} AS WELL AS "1"(MESSAGE INDEX NUMBER" PLEASE HELP

MTNL,

1 3817

how to swap four numbers without using fifth variable?

2 13481

please tell me the logic for this C program : INPUT (string):ABCD OUTPUT :BCDA CDAB DABC

Mphasis,

2 12340

why we use "include" word before calling the header file. is there any special name for that include??????

TCS,

1 4207

while running a program, i got the msg that press return key to exit.what that mean in C as there are no such options as far i know.

TCS,

1 3500

please help me.. how to write a code of this output?? "Enter range number:"10 1 is an odd number 2 is an even numbers 3 in an odd numbers 4 " to 10" "printing all odd numbers:" 1,3,5,7,9 "printing all even numbers:" 2,4,6,8,10 "sum of all odd numbers:25 "sum of all even numbers:30 using a C Programming ARRAY pleas pleas help.. its my project ..please :(

1 3359

Iam a B.Tech graduate and completed my engineering in 2009, from 2005 to 2009 and after that i had done nothing.Now i want to do job and get into BPO field . Friends give me suggestions as what to say in interview... if they ask me that what would you had done ... these many years without doing job ??????? pls urgent

1826

Without using main fn and semicolon,print remainder for a given number in C language

2 3917

write a program to reverse the words in the sentence.NOTE:not reverse the entire string but just the occurance of each word

Sienna Ecad, Wipro,

1 4878

Given a string write a program to print all alphabetical characters in the order of their occurance first,followed by the sum of the numeric characters then followed by the special characters in the order of their occurance.

College School Exams Tests, Wipro,

1 4239

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Un-Answered Questions { C }

When the macros gets expanded?

1425

Explain what are multibyte characters?

1200

Why are all header files not declared in every c program?

1104

Why is not a pointer null after calling free? How unsafe is it to use (assign, compare) a pointer value after it is been freed?

1140

What is mean by data types in c?

1032

Why do we use stdio h and conio h?

1093

What is difference between union All statement and Union?

1113

Are negative numbers true in c?

1069

What is indirection?

1095

please explain clearly about execution of c program in detail,in which stage are the printf sacnf getting into exeecutable code

2184

Why is c called c not d or e?

1101

How to explain the final year project as a fresher please answer with sample project

977

Differentiate between calloc and malloc.

1273

What is the need of structure in c?

1126

What is the difference between procedural and functional programming?

1081

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