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Recursion

 
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Recursion, how do you transform this program so that it terminates after 17 calls
metch
post 5 Aug, 2008 - 08:13 PM
Post #1


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Joined: 24 Jun, 2008
Posts: 7
cpp

#include <stdio.h>

int main(void)

{
	printf(" I am hungry!  ");
	main();
	return 0;

}

** Edit ** code.gif
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no2pencil
post 5 Aug, 2008 - 08:21 PM
Post #2


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You don't want to call main from within itself. I would make a 2nd function like so.

cpp

#include <stdio.h>

#define MAX 17

void hungry(void);
int main(void)
{
        int i=0;
	for(i;i<=MAX;i++) hungry();
	return 0;
}

void hungry(void) {
  printf(" I am hungry!  ");
}


I think this is a little more along the lines of recursion. What I had before was just a simple loop.

Please correct me if I'm wrong here.

cpp

#include <stdio.h>

#define MAX 17

int hungry(int x);
int main(void)
{
        hungry(0);
        return 0;
}

int hungry(int x) {
  printf("%i : I am hungry!\n",x);
  x++;
  if(x<MAX) hungry(x);
  return x;
}
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metch
post 7 Aug, 2008 - 06:57 PM
Post #3


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Joined: 24 Jun, 2008
Posts: 7

Thanks .....worked perfectly




QUOTE(no2pencil @ 5 Aug, 2008 - 08:21 PM) *

You don't want to call main from within itself. I would make a 2nd function like so.

cpp

#include <stdio.h>

#define MAX 17

void hungry(void);
int main(void)
{
        int i=0;
	for(i;i<=MAX;i++) hungry();
	return 0;
}

void hungry(void) {
  printf(" I am hungry!  ");
}


I think this is a little more along the lines of recursion. What I had before was just a simple loop.

Please correct me if I'm wrong here.

cpp

#include <stdio.h>

#define MAX 17

int hungry(int x);
int main(void)
{
        hungry(0);
        return 0;
}

int hungry(int x) {
  printf("%i : I am hungry!\n",x);
  x++;
  if(x<MAX) hungry(x);
  return x;
}
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