Given an integer that is a power of 10, find the number of non-zero bits, k, in its binary representation.
For example:
- n = 1, 10^n = 1010, so k = 2.
- n = 5, 10^n = 11000011010100000, so k = 6.
The solution should work for arbitrarily large powers n, say at least till n = 100.
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I can't get the last three cases to work out. I've checked the answers a couple of different ways. I still get 26 1s in the binary for 10^100. Is there a defect in the solutions offered?
The test cases are correct. In case you are using dec2bin, it is subject to loss of significance.