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hammer,

I want to include file without suffix as well

Can you help me fix the code? I already write them

*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

Hammer,
You are the best. :)

*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

struct treenode {
char filename[256];
struct treenode* leftchild;
struct treenode* rightchild;
};

So, what should I write in code?

I already try write some code,but fail

Is there a reference related to recognize the suffix?and sort them out?

The binary tree part is part is already done.

I just need compare() and lastindex().

Hammer,
What do you suggest I should do in comparefunction and lastindexdot()?

So, what should I do.

I need lastindexdot() to recognize every string. Should i eliminate one function.

Insertion() is not overengineer. It is a a recursion.

I only have problem with...

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

struct treenode {
char filename[256];
struct treenode* leftchild;
struct treenode* rightchild;
};

new version,
:eek:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

struct treenode {
char filename[256];
struct treenode* leftchild;
struct treenode* rightchild;

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define size 15

struct treenode {
char filename[256];
struct treenode* leftchild;
struct treenode* rightchild;

I have trouble connecting comparefile and lastdotindex suffix

Help!

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define size 15

struct treenode {
char filename[256];
struct treenode* leftchild;
struct treenode* rightchild;

I understand you are using strcmp to compare two string.
However, i don't understand the return value 16.

I know you cut off the first value by using strrchr.

Can you please elaborate on...

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

struct treenode {
char filename[256];
struct treenode* leftchild;
struct treenode* rightchild;
};