try for n=25.
my ans is 0
if n=25 then total sum of all elements = 325 which is odd
as odd can’t be divided into two equal parts answer must be 0?
please help sir
I got your mistake, replace all double with long long, because double will be a problem for bigger numbers like 10^9, n*(n+1) will be of the order 10^18
is long long supports float also
Why do u want float?
finding the ending element of the first group by
quadratic equation formula can give a float value
Ok I have understood it thanks a lot !
Ur solution with long long ac on all subtasks
thanks a lot !
I know about long long int data type but can you tell me about long long data type ? please
I have searched it on google but I am not getting precise answer .
is long long just a short form of long long int
yes, they are same as far as i have used.
Ok thanks ! I pray your goals came true