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Base of n doesn't matter. The base B only matters for the digit summation. For example, with B=2, we have 5^4=1001110001_2=625. You can express the 5 and 4 in base 2 if you want, but it doesn't change the answer.
Project Euler #119: Digit power sum
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This part of the question was not clear.
We know the summation and the number is on base 10 however n's base did not specified. 512 = (5+1+2)^n
Should we accept that as on base 10?
How about summation? Let (x)_b stands for number x on base b. Should we look for the following equality? (ABC)_b = ((A)_b+(B)_b+(C=_c)^n
Base of n doesn't matter. The base B only matters for the digit summation. For example, with B=2, we have 5^4=1001110001_2=625. You can express the 5 and 4 in base 2 if you want, but it doesn't change the answer.
can u post some of the output for base=2, i don't know where i am going worng