11409 - Ball Passing

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emotional blind
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11409 - Ball Passing

Post by emotional blind » Fri Mar 07, 2008 4:43 pm

I am getting WA. Using DP, I am calculating p1 and p2, here
p1 = probability of first ball to reach desired location
p2 = probability of second ball to reach desired location

now the ouput is floor(p*1e9)
where p=p1+p2-p1*p2

am I wrong? any critical input?

brianfry713
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Re: 11409 - Ball Passing

Post by brianfry713 » Fri Feb 22, 2013 2:30 am

That is correct.
To print the output I used

Code: Select all

#define EPS 1e-7
printf("%.0lf\n", floor(p*1e9+EPS)+EPS);
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