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

C Interview Questions

Questions Answers Views Company eMail

write a prgram of swapping with 2 valiables

6 6900

Why c++ is called c++ and not c+?

EBS,

9 31322

how to set Nth bit of a variable?

1 8055

what is the output on the screen? int n; n=printf("my name is %d",printf("kiran %d",printf("kumar"))); printf("\n %d \n",n);

TCS,

4 6624

what is the output of below int n=10; (n++)++; printf("%d",n);

3 10307

why we need function pointers?

3 6530

how to find your architecture is LittleEndian or BigEndian?

1 4660

Linked list is a Linear or non linear explain if linear how it working as a non linear data structures

2184

Write a program that takes a 5 digit number and calculates 2 power that number and prints it

ABS, Accenture, HCL, Infosys, Infotech, SoftSolve, Software India, TCS, Vertex, Vimukti Technologies,

5 15859

write a program wch produces its own source code aas its output?

IonIdea,

1 7423

write a program which will count occurance of a day between two dates.

IonIdea,

1 6847

how to set Nth bit of variable by using MACRO

HCL,

3 27081

#include void main() { int a,b,c; a=b=c=1; c=++a || ++b && ++c; printf("%d\t%d\t%d",a,b,c); }

3 9779

write C code to reverse a string such that if i/p is "abc defg hij klmno pqrs tuv wxyz" and the o/p should be "cba gfed jih onmlk srqp vut zyxw"

2 5483

diff .between strcture and union

2 4512

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Un-Answered Questions { C }

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

4605

What is the use of a semicolon (;) at the end of every program statement?

1512

How many keywords (reserve words) are in c?

1142

What are loops c?

1056

What happens if header file is included twice?

1152

What is static function in c?

1118

Describe the modifier in c?

1102

what is the diffrenet bettwen HTTP and internet protocol

1840

What is structure in c explain with example?

1164

Q.1 write aprogram to stack using linklist o insert 40 items? Q.2 write a program to implement circular queue with help of linklist?

2128

Linked list is a Linear or non linear explain if linear how it working as a non linear data structures

2184

What is d'n in c?

1124

The % symbol has a special use in a printf statement. How would you place this character as part of the output on the screen?

1281

Define the scope of static variables.

1132

Can you return null in c?

1169

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