Editorial for Another Contest 4 Problem 5 - Prime Time Television
Remember to use this editorial only when stuck, and not to copy-paste code from it. Please be respectful to the problem author and editorialist.
Submitting an official solution before solving the problem yourself is a bannable offence.
Submitting an official solution before solving the problem yourself is a bannable offence.
The function to implement is to return true iff is prime, as clued by the problem title.
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