Please tell me doubt in this one

#1


Please tell me ASAP.

#2

you need to take modulo while performing multiplication in the function:

#3

Sir can we do like we first calculate a^n and then do modulus with e in the main only.
Will it be Okay?

#4

no, a^n can easily exceed the range of long long int, you need to take modulo e at every multiplication

#5

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