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 6904

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

EBS,

9 31333

how to set Nth bit of a variable?

1 8057

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 6626

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

3 10309

why we need function pointers?

3 6536

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

2185

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 15861

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

IonIdea,

1 7425

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

IonIdea,

1 6850

how to set Nth bit of variable by using MACRO

HCL,

3 27082

#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 9785

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 5484

diff .between strcture and union

2 4513

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Un-Answered Questions { C }

Find the second largest element in an array with minimum no of comparisons and give the minimum no of comparisons needed on an array of size N to do the same.

1280

What is pragma c?

1123

Can you think of a logic behind the game minesweeper.

2469

Explain output of printf("Hello World"-'A'+'B'); ?

1500

What is the difference between printf and scanf in c?

1359

What is pointer to pointer in c?

1114

Does free set pointer to null?

1009

What is c++ used for today?

1110

What is the difference between fread and fwrite function?

1085

What is the scope of local variable in c?

1134

a program that can input number of records and can view it again the record

1918

Is file a keyword in c?

935

When I tried to go into a security sites I am denied access and a message appeared saying 'applet not initialize'. How can I rectify this problem.

1987

What are the applications of c language?

1081

What is the function of multilevel pointer in c?

1087

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