Srikanth Puli

Using recursion;

#include<iostream>

void printNTimes(int nTimes)
{
if(nTimes <= 0)
return;
std::cout<<"I love programming\n";
printNTimes(--nTimes);
}

int main()
{
int n = 0;
std::cin>>n;
printNTimes(n);
}

I ask the below questions:

1) Declare a structure with int, float and char variables. (This will lead to structure padding in C, then full details of structure padding like... what is it? why it is required?)

2) Pointers... what is the best use of pointers? Why pointers required? What happens when a pointer is allocated memory and when it got freed?

3) Memory layout of a program... Heap, Stack.

4) What happens when a function is called?

5) What happens when a C program is compiled? Phases like preprocessing, compilation. And about few compiler flags like -g, -O3, -E.