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

C Interview Questions

Questions Answers Views Company eMail

How to reverse a linked list

Aricent, Fidelity, IBM, TCS,

1 6688

1. Write a C program to count the number of occurrence of a specific word in the given strings. (for e.g. Find how many times the word “live” comes in the sentence “Dream as if you’ll live forever, live as if you’ll die today ”)

Eskom, TCS,

12 76318

write a c program to store and print name,address,roll.no of a student using structures?

7 71472

Write a C program to remove the repeated characters in the entered expression or in entered characters(i.e) removing duplicates

3 9047

Reverse the bit order in a single macro. eg. i/p = 10010101 --> o/p = 10101001

2 6551

implement NAND gate logic in C code without using any bitwise operatior.

Alcatel,

4 32897

implement OR gate without using any bitwise operator.

Alcatel, Wipro,

1 5883

Is the below things valid & where it will be stored in memory layout ? static const volatile int i; register struct { } ; static register;

Lucent,

2 5425

in one file global variable int i; is declared as static. In another file it is extern int i=100; Is this valid ?

Infosys, NetApp,

4 8508

what is difference between C and C++

4 7549

which is faster execution: loops or recursion?

3 7114

#include #include void main() {clrscr(); char another='y'; int num; for(;another=='y';) { printf("Enter a number"); scanf("%d",&num); printf("squre of %d is %d",num,num*num); printf("\nwant to enter another number y/n"); scanf("%c",&another); } getch(); } the above code runs only one time.on entering 'y' the screen disappeares.what can i do?

3 7840

Simplify the program segment if X = B then C ← true else C ← false

3015

what is computer

4 6134

we compile c program in 32 processor and 64 bit processor .exe file is created in both the processors. if we want to run .exe file in 64 bit processor which is created in 32 bit processor. is that .exe file is run or not if it is not run why?

HP, Wipro,

4 8555

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Un-Answered Questions { C }

What are the standard predefined macros?

1146

What tq means in chat?

1126

Define the scope of static variables.

1132

What is difference between union All statement and Union?

1112

Tell me what is the purpose of 'register' keyword in c language?

1010

What are the advantages of union?

1071

Do you know what are the properties of union in c?

1080

Not all reserved words are written in lowercase. TRUE or FALSE?

1236

Can a function be forced to be inline? Also, give a comparison between inline function and the C macro?

1099

What is #define?

1114

Explain what is operator promotion?

1086

How do we print only part of a string in c?

1028

What are the types of macro formats?

1124

What is c programing language?

1086

Explain what is the difference between a string and an array?

1168

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