void loadData(int *pinakas)
{
     FILE *fp;
     int i,mem,;
     fp=fopen(filename,"rb");
    fseek(fp,0,SEEK_END);
     mem=ftell(fp);
     i=0;
     realloc(pinakas,mem*sizeof(int));
      fseek(fp,0,SEEK_SET);
    if(pinakas==NULL) printf("Den yparxei arketi mnini gia dimiourgia enos pinaka \n");
    printf("%d\n",mem);
     
     	
	while(!feof(fp))
	{
                    fscanf(fp,"%d \n",&pinakas[i]);
                    printf("%d",pinakas[i]);
                    i=i+1;

     }fclose(fp);
    
}