Recursion Printing Natural Numbers from 1 to N

Link to Lecture Slides

Link to Code

[lakshaymittal]

As u said that stack is building on the top so in reverse code we should have 5 at the top then 4, 3, 2, 1 respectively but it wasn't like that.

[rachitbadoni]

sir if we try the same logic as u told us in the above program then the output of this program that i have written down should be 1 2 but the actual output is 1 1 but why
#include<stdio.h>
int n=3;
int main()
{
static int num=3;
if(--num)
{

main(--n);
printf("%d", n);
}
return 0;
}

[AmanYadav-ouxi]

Sir we can also use,
Int seq (int n)
{
if (n==6)
return 0;
else
printf("%d\n", n) ;
seq(n+1) ;
}
Here ?

[lakshaymittal]

I am bit confused about how to do obtain reverse and normal output

[gurmindersingh]

Sir,
When i m printing recursive functions like below:

printf("Inside main %d\n", seq(n)) ;

Its giving output as:

1
2
3
4
5
Inside main 3

I am not able to understand the above output sir.
My queries are:

1.why natural numbers are printed before inside main?
2. From where the value '3' came after inside main?

[malvikakunwarsen]

Sir when the pointer goes to the else part then it calls seq(n-1) till n becomes zero
As soon as seq (n-1) is called it goes back to function definition and does not go to the printf statement
Then why every activation record contains printf statement