In c language can we compile a program without main() function?
Why is c so popular?
What is the benefit of using const for declaring constants?
What is the size of a union variable?
what is c language.
A banker has a seif with a cipher. Not to forget the cipher, he wants to write it coded as following: each digit to be replaced with the difference of 9 with the current digit. The banker chose a cipher. Decipher it knowing the cipher starts with a digit different than 9. I need to write a program that takes the cipher from the keyboard and prints the new cipher. I thought of the following: Take the input from the keyboard and put it into a string or an array. Go through the object with a for and for each digit other than the first, substract it from 9 and add it to another variable. Print the new variable. Theoretically I thought of it but I don't know much C. Could you give me any kind of hint, whether I am on the right track or not?
what is the difference between static variable and register variable?
Difference between malloc() and calloc() function?
Can we initialize extern variable in c?
What is the advantage of c?
When should you use a type cast?
What is the use of keyword VOLATILE in C?
Explain how can you determine the size of an allocated portion of memory?