OJ Board

(Thanks rio ) I tried your input values, now i got write answer, but how to break exponential numbers in normal numbers and how to get number of zeroes after decimal point.

Hi there, can you send me your code for this problem

I tried it lot of times and i m unable to solve it, here is my code:
void main(void)
{
int n;
cout<<"How many times you pick up ?";
cin>>n;
long double result=1;
double turn=1.0;
for (int i=1;i<=n;i++)
{
result=result * ( (1/turn) * (1/(turn+1)) );
turn++;

}

cout<<result<<endl;

}