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Problem 20. Summing digits

Given n, find the sum of the digits that make up 2^n.

Example:

 Input  n = 7
 Output b = 11

since 2^7 = 128, and 1 + 2 + 8 = 11.

Solution Stats

51.4% Correct | 48.6% Incorrect
Last solution submitted on Oct 20, 2017

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