Explain problem statement

#1

how is this expression (2^2)mod 3 = 1.
please explain the problem statement

#2

@S19WDPP0014 The expression simply means that you have to raise a to the power b and then take the modulo. For example in this case a=2, b=2, c=3.
so 2^2= pow(2,2) = 4
4%c = 4%3 = 1.

#3

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#4

i cant seem to pass all the test cases please suggest me any optimisation.

#5

here is my code https://ide.codingblocks.com/s/208428

#6

@S19WDPP0014 you should pass variable c to your expo function and take modulo while updating result and a.
i have updated your code for same (https://ide.codingblocks.com/s/208480)