Where are some editorials?

I don’t understand why the editorials for some problems (probably harder) are missing? first exxample from april challenge - http://www.codechef.com/APRIL13/problems/STRQUERY - and for this month I’m presume they are not done all of them.

For some time they are here in forum - http://discuss.www.codechef.com/questions/8522/strquery-editorial .

thnks betlista!

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