Find step to divide sum of two very big ints on equal chunks

Question

I have two limits - start and end which are long values. I need to find step to divide distance between start and end on equal chunks.

So the formula actually is following:

(end - start)/1000

where 1000 is amount of chunks. The problem comes when start is Long.MIN_VALUE or near to it and end is Long.MAX_VALUE.

Thanks

Answer 1

You could use a BigInteger instead:

BigInteger bigStart = BigInteger.valueOf(start);
BigInteger bigEnd = BigInteger.valueOf(end);
BigInteger bigDiv = BigInteger.valueOf(1000);

BigInteger step = bigEnd.subtract(bigStart).divide(bigDiv);