OJ Board

Hello everybody,

I'm struggling to solve problem 11619.
I have coded it in Java, but I have a problem because I'm still getting WA.

Approach:
- use logarithm to calculate big formula
- assign probability spam/ham words (wordSpamFreq/totalSpamWords) or (wordFreqHam/totalHamWords).

Sample input:
MESSAGE SPAM
replica rolex
==
MESSAGE SPAM
replica rolex
==

P(replica/S) = 2/2 (it appears 2 times in 2 spam messages)
P(rolex/S) = 2/2
of course P(replica/H) = 0 & P(rolex/H) = 0.

I've also tried to assign P(replica/S) = 1, P (replica/H) = 0 but also not worked.

For sample input I'm getting this probabilities:

0.5
Unsure
0.9994837377387712
Spam
0.0019912881144990694
Ham

Any suggestion is helpful!

Thanks!

I just got AC. I'm not sure why you're using logarithm. Your probabilities are close to mine for the sample input. I used double variables in C++.

Try this input:AC output:

Input:AC Output: Spam

Hi,

Many thanks for your posts. I've got ACCEPTED

Other possible test case:
Output:
Unsure
Spam
Ham