Hello everybody
The coach mode button has been removed from my profile a few months ago,
FYI I didn't participate in any rated contest for 15 months.
Can you tell me if there are new rules about the coach mode, with resources if possible ?
Thanks
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Hello!
What is the fastest way to calc the number of divisors of n! , s.t 1 <= n <= 1e8.
Number of test cases <= 5000 .
I've stucked at this point while solving this problem EasyFact
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