I have been solving Problem C from Codeforces Round #885(Div. 2),1848C - Vika and Price Tags. Below code gets accepted but adding a little change to the calc function gives TLE,
Accepted Submission: 266686268 .....TLE: 266686665
I changed
return calc(b ,rem ) + q + q/2;
to
return calc(rem , b-rem ) + q + q/2 + 1;
in the calc function and it is giving a TLE after this change even though the overall complexity remains the same. Can anyone explain the same?
in calc function program under if(q%2!=0) are not same
I don't think these two programs are the same.
Function $$$calc$$$ in the first submission seems to be roughly equal to $$$gcd$$$ in terms of complexity, but in the second submission it is $$$O(b)$$$, $$$calc(1, 1e9)$$$ needs $$$1e9$$$ calls to be computed.