Where is my error?

#1
#2

hello @chandreshmaurya

u need to take modulo while computing power . this is done to avoid overflow

check now->

#3

sir, please explain me the while loop

#4

while(b>0) { if((b&1)==1){ ans = (ansp)%c;//updated } p = (pp)%c;//updated b = b>>1; }

#5

see we are asked to compute (a^b)%c
, what u were doing is we were first computing a^b and then taking its mod with c.
since a^b can be very big number we cant compute it and store it in int variable as it will leads to overflow.

so to avoid it what we are doing we are taking mod while computing power.

this technique is call modular exponent technique.
pls read about modular arithmetic properties and modular exponentation of better clarity

#6

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