Counting Bits
Your task is to count the number of one bits in the binary representations of integers between 1 and n. Input The only input line has an integer n. Output Print the number of one bits in the binary representations of integers between 1 and n. Constraints - 1 \le n \le 10^{15} Example Input: 7 Output: 12 Explanation: The binary representations of 1 \ldots 7 are 1, 10, 11, 100, 101, 110,
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solution.cppC++17
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