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C Interview Questions
Questions Answers Views Company eMail

How to reverse a linked list

Aricent, Fidelity, IBM, TCS,

1 5287

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 68027

write a c program to store and print name,address, of a student using structures?

7 60582

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

3 6587

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

2 4669

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


4 27380

implement OR gate without using any bitwise operator.

Alcatel, Wipro,

1 4186

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


2 3480

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 5572

what is difference between C and C++

4 4439

which is faster execution: loops or recursion?

3 4219

#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 5074

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


what is computer

4 3129

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 5697

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Un-Answered Questions { C }

Can you tell me how to check whether a linked list is circular?


What is a substring in c?


What is the code for 3 questions and answer check in VisualBasic.Net?


What is the full form of getch?


What are multidimensional arrays?


What are the advantages of c preprocessor?


What are formal parameters?


What is a constant?


pgm to find number of words starting with capital letters in a file(additional memory usage not allowed)(if a word starting with capital also next letter in word is capital cann't be counted twice)


How do I copy files?


What is the difference between functions abs() and fabs()?


What does return 1 means in c?


When should volatile modifier be used?


Differentiate call by value and call by reference?


Is c++ based on c?