Why is malloc used?
HOW TO SWAP TWO NOS IN ONE STEP?
how to determine the complexity of an algorithm as log(n)
5) Write a program that takes a 3 digit number n and finds out whether the number 2^n + 1 is prime, or if it is not prime find out its factors.without using big int and exponential function
24.what is a void pointer? 25.why arithmetic operation can’t be performed on a void pointer? 26.differentiate between const char *a; char *const a; and char const *a; 27.compare array with pointer? 28.what is a NULL pointer? 29.what does ‘segmentation violation’ mean? 30.what does ‘Bus Error’ mean? 31.Define function pointers? 32.How do you initialize function pointers? Give an example? 33.where can function pointers be used?
When should the volatile modifier be used?
Write a c program to demonstrate character and string constants?
how to make program without <> in library.
Explain how can type-insensitive macros be created?
What are the types of macro formats?
what value is returned to operating system after program execution?
What is getch c?
What is use of pointer?