I have the same problem and I disagree with this comment. I am modding all values by 100003, however, there was one multiplication at a point in the code that I overlooked. Given x, y < 100003, the product x * y could potentially reach 10 ^ 10 and exceed the 32-bit unsigned integer limit, which is just above 4 * 10 ^ 9. Hence, casting to 64 bit integer is necessary.
On May 24, 7:51 am, Bharath Balakrishnan <[email protected]> wrote: > Your output was modulo 100003. A carefully coded program with mod (%) in the > right places would have worked with int itself. You don't need a long. > > > > On Sun, May 23, 2010 at 1:11 AM, bokertov <[email protected]> wrote: > > I used "int" and it worked for the small case. But my output for the > > large case was incorrect. Then I found out if I replace "int" by "long > > long", then it's correct! I lost 30 points because of this stupid > > mistake, man! > > > The reason is that 10^5*10^5 = 10^10, which is bigger than the upper > > bound ~ 2*10^9 of int. > > > I'll surely learn this lesson, and will avoid it in the future. > > > -- > > You received this message because you are subscribed to the Google Groups > > "google-codejam" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<google-code%[email protected]> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-code?hl=en. > > -- > Regards, > Bharath B > > "When the going gets tough, the tough get going" > > -- > You received this message because you are subscribed to the Google Groups > "google-codejam" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group > athttp://groups.google.com/group/google-code?hl=en. -- You received this message because you are subscribed to the Google Groups "google-codejam" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-code?hl=en.
