What is really happening in this code?

Question

I have a code which includes a recursive function. I have wasted a lot of time on recursion but I still couldn\'t get it really:

#include
void         


        

Answer 1

Each number refers to the line number.

#include
count(int);
main()
{
1int x=10,z;
2count(x);
}  
count(int m)
{
3if(m>0)
4   count(m-1);
5printf("%d",m);
}

The execution happens like this(with x=3) -

line number|value of x

1 3

2 3

3 3

4 2

3 2

4 1

3 1

4 0

5 0

5 1

5 2

5 3

Numbers printed on the screen 0 1 2 3