HELP ME

HELP ME.c

#include<stdio.h>

int removeDuplicates(int* nums, int numsSize) {
 
    
}
int main()
{
	int i=0,j=0,k=0,count=0;
	int arr[]={1,2,2,3,3,4,5,5};
	int index=8;
	for(i=0;i<index;i++)
	{
		//printf("%d",index);
		for(j=i+1;j<index;j++)
		{
			if(arr[i]==arr[j])
				{
					count++;		
				}
				//printf("%d",count);	
			//printf("index:%d",index);
		}
		printf("進去前->index:%d count:%d",index,count);
		if(count>0)
		{
			for(k=0;k<index;k++)
			{
				arr[i+k]=arr[i+count+k];	
			}
		} 
		printf("出來後->index:%d count:%d",index,count);
		index=index-count;
		count=0;
	
	}

/*	for(i=0;i<index;i++)
	printf("%d",arr[i]);*/
}