c de pointer ve dizilerle alakalı ??

 
  #include <stdio.h> 
  #include <conio.h> 
   
   
  int main(){ 
  	 
  	int sayi[3],i=2,j=0,*ptr,a=0,b; 
  		printf("%d. Sayi : ",i-1); 
  		scanf("%d",&sayi[j]); 
  	  
  	while(sayi[j-1]>=0) 
  	{     
  			if(j==3){	 
  			 
  			if(a>1){ 
  				int *k; 
  				k=&ptr[a];	 
  				k=&sayi[0]; 
  	        	} 
  	        	else{ 
  	        		ptr=&sayi[0]; 
  				} 
  		    j=0; 
  		    a+=3; 
  		 
  	     } 
  		printf("%d. Sayi : ",i); 
  		scanf("%d",&sayi[j]); 
  		j++; 
  		i++; 
  	} 
  	printf("\n\n%d",*ptr); 
   
  	 
  	getch(); 
  	return 0; 
  }