What is function in C?

A function is a small set of instructions designed to operate on its given input (aka parameters or arguments) and perform some action or return some output. Generally in programming a commonly used strategy is to take a large program and break it into smaller chunks, which are turned into functions.

So say that you are writing a large program and constantly have to see which of two numbers is smaller, you could write a function:

int smaller(int a, int b)
{

if(a < b)

return a;

else

return b;

}

In Interview these kinds of questions will be asked in written Technical Round.

All type of questions which will be asked in written Technical round based on this topic is uploaded.