Pinging everyone else to get attention BledDest vovuh MikeMirzayanov.

s̶h̶o̶u̶l̶d̶'̶v̶e̶ ̶j̶u̶s̶t̶ ̶u̶s̶e̶d̶ ̶p̶y̶t̶h̶o̶n̶

this might help link. feelsbadman T_T

Sure it is a false positive plagiarism detection issue. It happens rarely. But did you read the comment from the system? It gives you a standard way to resolve such issues. No need to write posts like this. UPD: Sorry, I don't know why you didn't receive a message about the violation. I'll investigate it.

Hi went through your solution. I am unable to understand couple of things.
What is the purpose of substracting and adding 1 for upper k or lower k?
Thanks

bigint df(bigint a, bigint b)
{
    if (b < 0) a = -a, b = -b;
    return a / b &mdash; (a % b < 0);
}

bigint dc(bigint a, bigint b)
{
    if (b < 0) a = -a, b = -b;
    return a / b + (a % b > 0);
}