Thread: Problem with structures

I am having problem executing this code i wrote for creating a binary tree.the code is compiling well but its stops running after taking the input of words.please help...
insert

Code:

#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
#include<ctype.h>
#include<stddef.h>
#define MAX 100
struct tnode{
    char *word;
    int count;
    struct tnode *left;
    struct tnode *right;
};

struct tnode *additem(struct tnode *,char *);
void printtree(struct tnode *);
main()
{struct tnode *root,*p1;
char *p[10],words[10][MAX];
int i,n,k;
root=NULL;

for(i=0;i<10;i++)
{p[i]=words[i];
gets(p[i]);
}

root=additem(root,p[0]);
k=1;
while(k<10)
{if(isalpha(*(p[k]+0)))
   {
   p1=additem(root,p[k]);
    }
}
printtree(root);
getch();
}

struct tnode *talloc(void);

struct tnode *additem(struct tnode *p,char *w)
{
    int cond;
    if(p==NULL)
    {
        p=talloc();
        p->word=w;
        p->count=1;
        p->left=NULL;
        p->right=NULL;
    }
    else if((cond=strcmp(p->word,w))==0)
    p->count++;
    else if(cond>0)
    p->left=additem(p->left,w);
    else
    p->right=additem(p->right,w);
    return p;
}

void printtree(struct tnode * tree) {
   if(tree->left) printtree(tree->left);
   printf("%4d %s\n",tree->count,tree->word);
   if(tree->right) printtree(tree->right);
}
struct tnode *talloc(void)
{
    return (struct tnode *)malloc(sizeof(struct tnode));
}

I can't fix all the code but I can tell you where it stops and why.

Code:

while(k<10)
{
  if(isalpha(*(p[k]+0)))
  {
    p1=additem(root,p[k]);
  }
}

you never change the value of k. Hence while never stops. Sorry I don't know more about trees yet or I'd try to help with why it isn't printing the words either.

thnx man..i wasnt able to see the fault...now the program runs..